A Complete General Science Objective type for all entrance examinations
1 )From which mineral is radium obtained?
A. Rutile B.Haematite
C. Limestone D.Pitchblende
Answer: Option D
2 ) Actinides are the elements with atomic numbers from
A. 97 to 104
B. 101 to 115
C. 89 to 103
D. 36 from 43
Answer: Option C
3 ) The filament of an electric bulb is made of
A. tungsten B.nichrome
C. graphite D.iron
Answer: Option A
4 ) Diamond is an allotropic form of
A. germanium B.carbon
C. silicon D.sulphur
Answer: Option B
5 )Permanent hardness of water can be removed by adding
A. chlorine
B. washing soda
C. potassium permanganate
D. bleaching powder
Answer: Option B
6)LPG consists of mainly
A. methane, ethane and hexane
B. ethane, hexane and nonane
C. methane, hexane and nonane
D. methane, butane and propane
Answer: Option D
7)Marsh gas is
A. nitrogen B.ethane
C. methane D.hydrogen
Answer: Option C
8 ) Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products?
A. Television
B. Refrigerator
C. Tube light
D. Cooking gas
Answer: Option B
9 ) Which of the following does not contain a coinage metal?
A. Silver and Gold
B. Zinc and Gold
C. Copper and Silver
D. Copper and Gold
Answer: Option B
10 )Bell metal is an alloy of
A. nickel and copper
B. zinc and copper
C. brass and nickel
D. tin and copper
Answer: Option D
11)Which of the following is not an isotope of hydrogen?
A. Tritium B.Deuterium
C. Protium D.Yttrium
Answer: Option D
12)Amalgams are
A. highly coloured alloys
B. alloys which contain mercury as one of the contents
C. alloys which have great resistance to abrasion
D. alloys which contain carbon
Answer: Option B
13 )Which of the following metals remain in liquid for under normal conditions?
A. Radium B.Zinc
C. Uranium D.Mercury
Answer: Option D
14) Which of the following substances is a bad conductor of electricity but a good conductor of heat?
A. Mica B.Perspex
C. Celluloid D.Asbestos
Answer: Option A
15)Which of the following does not contain a coinage metal?
A. Silver and Gold
B. Zinc and Gold
C. Copper and Silver
D. Copper and Gold
Answer: Option B
16)Water is a good solvent of ionic salts because
A. it has a high specific heat
B. it has no colour
C. it has a high dipole moment
D. it has a high boiling point
Answer: Option C
17) Which of the following is not an isotope of hydrogen?
A. Tritium B.Deuterium
C. Protium D.Yttrium
Answer: Option D
18 ) Brass gets discolored in air because of the presence of which of the following gases in air?
A. Oxygen
B. Hydrogen sulphide
C. Carbon dioxide
D. Nitrogen
Answer: Option B
19 ) Chlorophyll is a naturally occurring chelate compound in which central metal is
A. copper B.magnesium
C. iron D.calcium
Answer: Option B
20) Which of the following metals forms an amalgam with other metals?
A. Tin B.Mercury
C. Lead D.Zinc
Answer: Option B
1. The bell metal is an alloy of-
(a) Nickel and copper
(b) Zinc and copper-
(c) Tin and copper
(d) Tin and aluminum
(e) Brass and nickel
Answer. (c)
2. Parsec is a measure of-
(a) Brightness of heavenly body
(b) Astronomical distance
(c) Density of stars
(d) Orbital velocity of giant stars
Answer. (d)
3. By fixation of nitrogen is meant-
(a) Manufacture of nitrogen
(b) Liquefication of nitrogen
(c) Conversion of nitrogen into nitric acid
(d) Conversion of atmospheric nitrogen into
Useful compounds
(e) Mixing of nitrogen with other elements
Answer. (d)
4. Atoms of the same element, i. e., having the
Same atomic number that differ in atomic
Weight, are called-
(a) Isotopes
(b) Isomers
(c) Isobars
(d) Isohytes
(e) Isotherms
Answer. (a)
5. The quantum number that tends to specify
The orientation in space for an orbital is the-
(a) Principal quantum number
(b) Orbital quantum number
(c) Magnetic quantum number
(d) Spin quantum number
(e) Azimuthal quantum number
Answer. (c)
6. Carbohydrates are the compounds of-
(a) Carbon and hydrogen
(b) Carbon, oxygen and hydrogen
(c) Carbon, oxygen, hydrogen and nitrogen
(d) Carbon, nitrogen and hydrogen
(e) None of these
Answer. (b)
7. The tides in the ocean are due to-
(a) Wind over the oceans
(b) Gravitational pull of the moon
(c) Rotation of the earth
(d) Revolution of the earth
Answer. (b)
8. When water freezes its density-
(a) Increases
(b) Decreases
(C) remains constant
(d) Becomes zero
Answer. (b)
9. A chemical reaction that takes place with
the evolution of heat is called a/an-
(a) Reversible reaction
(b) Endothermic reaction
(c) Thermal reaction
(d) Exothermic reaction
(e) Irreversible reaction
Answer. (d)
10. The manufacture of iron ore
Involves the process of-
(a) Oxidation
(b) Reduction
(c) Fractional distillation
(d) Electrolysis
(e) None of the above
Answer. (b)
11. A double convex air bubble in water would
Behave as a-
(a) Convergent lens
(b) Divergent lens
(c) Both as convergent and divergent lenses
(d) None of them
Answer. (b)
12. Which of the following has the strongest
Bleaching property?
(a) Chlorine
(b) Fluorine
(c) Bromine
(d) Iodine
(e) Lithium
Answer. (a)
13. The most abundant element in the earth’s
Crust is-
(a) O
(b) Al
(c) Si
(d) Fe
(e) N
Answer. (a)
14. Which of the following gases do not form
Part of the atmosphere?
(a) Nitrogen
(b) Chlorine
(c) Carbon dioxide
(d) Oxygen
(e) Ozone
Answer. (b)
15. Nitric acid does not react with-
(a) Copper
(b) Gold
(c) Silver
(d) Zinc
(e) Iron
Answer. (b)
16. Oxygen is manufactured by the fractional
Evaporation of-
(a) Water
(b) Liquid air
(c) Hydrogen peroxide
(d) Liquid oxygen
(e) None of the above
Answer. (b)
17. Sodium burns in air to give-
(a) Sodium peroxide
(b) Sodium hydroxide
(c) Sodium monoxide
(d) Sodium oxide and sodium nitride
(e) Sodium oxide and sodium nitride
Answer. (a)
19. Argon gas was discovered by-
(a) William Ramsay
(b) Charles
(c) Cavendish
(d) John Davy
(e) Alfred Werner
Answer. (A)
19. Formaldehyde is the starting material for
The manufacture of-
(a) D. D. T.
(b) Rayon
(c) Bakelite
(d) Caprolactam
(e) Nylon
Answer. (c)
20. During burnings of fuels, carbon and
Hydrogen present in the fuels are-
(a) Converted into carbon dioxide and
Water vapour
(b) Released into the atmosphere
(c) Absorbed by the surroundings
(d) Converted into alkanes
(e) Reduced
Answer. (a)
21. Dry ice is-
(a) Ice which never melts
(b) A term used for insensitive persons
(c) Solid carbon dioxide
(d) Frozen heavy water
(e) None of these
Answer. (c)
22. The compound which can be used to
Prepare iodoform is-
(a) Accetic acid
(b) Methyl iodide
(c) Acetone
(d) Propionaldehyde
(e) Oxalic acid
Answer. (c)
23. The phenomenon of “metamerism” is
Shown by-
(a) Acetone and Propionaldehyde
(b) Methyl propylether and diethyl ether
(c) Ethyl alcohol and dimethyl ether
(d) Propionic acid and acetic acid
(e) Oxalic acid and lactic acid
Answer. (b)
24. If two liquids have widely different boiling
Points, they may be separated by-
(a) Steam distillation
(b) Decantation
(c) Evaporation
(d) Fractional distillation
(e) Sublimation
Answer. (d)
25. What is laughing gas?
(a) Carbon dioxide
(b) Sulphur dioxide
(c) Nitrous oxide
(d) Hydrogen peroxide
(e) Carbon monoxide
Answer. (c)
1. General gas equation is
(a) PV = RT
(b) PV= mRT
(c) PV = Constant
(d) = constant
ANSWER: (a)
2. An isolated system is one, which
(a) Permits the passage of energy and matter
across the boundaries
(b) Permits the passage of energy only
(c) Does not permit the passage of energy and matter across it
(d) Permits the passage of matter only
ANSWER: (b)
3. In an isolated system, boundary of the system is
crossed by
(a) Heat
(b) Work
(c) Mass
(d) Both (a) and (b) above
ANSWER: (d)
4. The characteristic of a control volume is/are
(a) The volume, shape and position with respect to an observer are fixed
(b) Material flow across the boundary
(c) Both (a) and (b) above
(d) None of the above
ANSWER: (c)
5. Specific heat is the amount of heat required to raise the temperature
(a) By unit degree of a substance
(b) By unit degree of a unit mass
(c) Of a unit mass by 10°
(d) None of the above
ANSWER: (b)
6. Internal energy of a perfect gas depends upon
(a) Temperature only
(b) Temperature and pressure
(c) Temperature, pressure and specific heats
(a) None of the above
ANSWER: (a)
7. With rise of temperature, the specific heat of
water
(a) Increases
(b) Decreases
(c) First decreases to minimum then increases
(d) Remains constant
ANSWER: (c)
8. For a closed system, difference between the heat added to the system and work done by the gas, is
equal to the change in
(a) Enthalpy
(b) Entropy
(c) Internal energy
(d) Temperature
ANSWER: (c)
9. Specific heat of water is
(a) 1
(b) 0.1
(c) 0.97
(d) None of the above
ANSWER: (a)
10. Properties of the system, whose value for the entire system is equal to the sum of their values
for individual parts ofthe system, are known as
(a) Thermodynamic properties
(b) Extensive properties
(c) Intensive properties
(d) None of the above
ANSWER: (b)
1. The extensive property of a thermodynamic system is
(a) Viscosity
(b) Surface tension
(c) Refractive index
(d) Heat capacity
ANSWER: (d)
12. Thermal equilibrium between two or more bodies exists, when they are brought together; there is no change in
(a) Density
(b) Pressure
(c) Temperature
(d) All of the above
ANSWER: (c)
13. When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium
with each other This statement is
(a) Zero the law of thermodynamics
(b) First law of thermodynamics
(c) Second law of thermodynamics
(d) None of the above
ANSWER: (a)
14. First law of thermodynamics deals with conservation of
(a) Mass
(b) Heat
(c) Momentum
(d) Energy
ANSWER: (d)
15. According to first law of thermodynamics
(a) total energy of a system remains constant
(b) total energy of a system during a process
remains constant
(c) enthalpy entropy and total energy remains constant
(d) none of the above
ANSWER: (a)
16. For the measurement of thermodynamic property known as temperature, is based on
(a) Zeroth law of thermodynamics
(b) First law of thermodynamics
(c) Second law of thermodynamics
(b) Third law of thermodynamics
ANSWER: (a)
17. Energy can neither be created nor destroyed but only converted from one form to another. This
statement is
(a) Zeroth law of thermodynamics
(b) First law of thermodynamics
(c) Second law of thermodynamics
(d) None of the above
ANSWER: (b)
18. Kelvin-Plank’s law’ deals with
(a) Conversion of work into heat
(b) Conversion of heat into work
(c) Conservation of work
(d) Conservation of heat
ANSWER: (b)
19. A perpetual motion machine of the first kind is a machine which produces power without
consuming any energy is,
(a) Possible according to first law of thermodynamics
(b) Impossible according to first law of thermodynamics
(c) Impossible according to second law of thermodynamics
(d) Possible according to second law of thermodynamics
ANSWER: (b)
20. Heat flows from cold substance to hot substance with the aid of external work This statement is
given by
(a) Kelvin
(b) Joule
(c) Gay Lussac
(d) Clausius
ANSWER: (d)
21. The fastest moving gas molecules are of
(a) Oxygen
(b) Hydrogen
(c) Chlorine
(d) Nitrogen
ANSWER: (b)
22. In actual gases, the molecular collisions are
(a) Elastic
(b) Plastic
(c) Inplastic
(d) Ineclastic
ANSWER: (d)
23. If a perfect gas, undergoing any change in the variable, which control physical properties, it’s
behaviour is governed by
(a) Boyle’s law
(b) Charles’s law
(c) Gay Lussac law
(d) All of the above
ANSWER: (d)
24. According of Boyle’s law at constant temperature PV= C. In this relation value of C
depends upon
(a) Atmospheric pressure
(b) Quantity Of the gas
(c) Molecular weight of the gas
(d) All of the above
ANSWER: (b)
25. Change of internal energy is proportional to the change of temperature. This is
(a) Boyle’s law
(b) Charles’s law
(c) Joule’s law
(d) Gay Lussac law
ANSWER: (c)
1. A bullet of mass A and velocity B fired into a block of wood of mass C. If loss of any
mass and friction be neglected, the velocity of the system must be
(a) AB/A+C
(b) A+C/B+C
(c) AC/B+C
(d) A+B/AC
Ans. (a)
2. A rocket works on the
(a) first law of motion
(b) second law of motion
(c) third law of motion
(d) law of conservation of energy
Ans. (c)
3. 1 dyne is equal to
(a) 980 g wt
(b) 1/100 g wt
(c) 980 kg wt
(d) none of these
Ans. (b)
4. Two skaters A and B of mass 50 kg and 70 kg respectively stand facing each other
6 metres apart. They then pull on a light rope stretched between them. How far has
each moved when they meet?
(a) Both have moved 3 metres.
(b) A moves 2.5 metres and B moves 3.5 metres.
(c) A moves 3.5 metres and B moves 2.5 metres.
(d) A moves 2 metres and B moves 4 metres.
Ans. (c)
5. A body of mass M collides against a wall with velocity V and rebounds with the same speed. Its change of momentum is
(a) zero
(b) MV
(c) 2MV
(d) –MV
Ans. (c)
6. A bullet in motion hits and gets embedded in a solid resting on a frictionless table.
What is conserved?
(a) Momentum and kinetic energy
(b) Momentum alone
(c) Kinetic energy alone
(d) Neither momentum nor kinetic energy
Ans. (b)
7. A man sitting in a train in motion is facing the engine. He tosses a coin up,
the coin falls behind him. The train is moving
(a) forward with uniform speed
(b) backward with uniform speed
(c) forward with acceleration
(d) forward with deceleration
Ans. (b)
8. If the mass of a body is 12.1 g and the density is 2.2 g/cc, its volume is
(a) 1.5 cm3
(b) 8 cc
(c) 11 cc
(d) 55 cc
Ans. (a)
9. Brine has a density of 1.2 g/ccc. 40 cc of it are mixed with 30 cc of water.
The density of solution is
(a) 2.11 g/ccc
(b) 1.11 g/ccc
(e) 12.2 g/ccc
(d) 20.4 g/ccc
Ans. (b)
10. If a force of 10 N acts on surfaces of areas in the ratio 1: 2. then the ratio of
thrusts is
(a) 1:2
(b) 2:1
(c) 3:1
(d) 1.1
Ans. (d)
11. The buoyant force depends on the
(a) depth of a liquid
(b) density of a liquid
(c) colour of a liquid
(d) none of these
Ans. (b)
12. A force of 50 N is applied on a nail of area 0.00 1 sq. cm. Then the thrust is
(a) 50 N
(b) 100 N
(c) 0.05 N
(d) 10 N
Ans. (a)
13. A piece of wood floats in water. What happens to it in alcohol?
(a) Floats higher
(b) Stays as before
(c) Sinks
(d) Sinks and rises
Ans. (c)
14. An ice cube is floating in a glass of water. What happens to the water level when
the ice melts?
(a) Rises
(b) Falls
(c) remains same
(d) First rises and then falls
Ans. (c)
15. The SI unit of pressure is
(a) atmosphere
(b) dyne/cm2
(c) pascal
(d) mm of Hg
Ans. (c)
16. A body of mass 50 kg has a volume 0.049 m3.The buoyant force on it is
(a) 50 kg f
(b) 50N
(e) 49N
(d) 49kg f
Ans. (d)
17. If two masses A and B have their masses in the ratio 1: 4 and their volumes are equal,
then the densities have the ratio
(a) 1:4
(b) 4:1
(c) 2:1
(d) 3:1
Ans. (a)
18. If the density of a block is 981 kg/m3, it shall
(a) sink
(b) float
(c) float completely immersed in water
(d) float completely out of water
Ans. (b)
19. As the density of a series of liquids increases, the upthrust on the iron rod submerged
(a) increases
(b) decreases
(c) remains constant
(d) nothing can be said
Ans. (a)
20. The SI unit of thrust is
(a) N
(b) dyne
(c) kg wt
(d) N m-2
Ans. (a)
21. The total force exerted by the body perpendicular to the surface is called
(a) pressure
(b) thrust
(c) impulse
(d) none of these
Ans. (a)
22. At sea level, atmospheric pressure is
(a) 76 cm of Hg column
(b) 76 cm of Hg column
(c) 0.76 cm of Hg column
(d) 76 cm of water column
Ans. (a)
23. Atmospheric pressure is measured by a
(a) doctor’s thermometer
(b) peedometer
(c) mercury barometer
(d) none of these
Ans. (c)
24. The weather forecasting department uses………as the unit of pressure,
(a) bar
(b) N m-2
(c) Pa
(d) mm of Hg
Ans. (a)
25. Which of the following physical quantity has no unit?
(a) Relative density
(b) Density
(c) Pressure
(d) Thrust
Ans. (a)
8. Dimensions of surface tension are:
(a) [M2L2T2]
(b) [M2LT2]
(c) [MT2]
(d) [MLT2]
Ans. (c)
1. The dimensional formula for Plancks constant and angular momentum is:
(a) [ML2T2] and [MLT-1]
(b) [ML2T-1] and [ML2T-1]
(c) [ML3T1] and [ML2T-2]
(d) [MLT-1] and [MLT-2] ‘
Ans. (b)
1. Deficiency of proteins and calories (Protein Energy Malnutrition - PEM) generally occurs in Growing children
2. What is the indication of Protein Energy Malnutrition - PEM underweight
3. What are the most serious forms of Protein Energy Malnutrition - PEM Kwashiorkor and Marasmus
4. Human body contains about _____ minerals. 24
5. Minerals are needed for Formation of bones and teeth, maintenance of osmotic pressure of body fluids, blood formation by iron etc.
6. Deficiency of Calcium and Phosphorus causes _____ in children and _____ in adults. Rickets, Osteomalacia
7. Deficiency of sodium chloride are Urine loss, kidney damage, acidosis
8. Why is Magnesium important for human body? for the proper functioning of various metabolic pathways and ion channels
9. What are the deficiencies of magnesium Irritability, hyperreflexia
10. Iron is essential for the formation of _____. Haemoglobin
11. What is the deficiency of iron Anaemia
12. Which tablets should be given for the treatment of iron deficiency? Ferron sulphate
13. Iodine is found in _______. Dairy products, seafood, kelp, eggs, some vegetables and iodised salt.
14. Why is Iodine required for our body? synthesis of thyroid hormones, thyroxine and triodothyronine
15. What are the deficiencies of Iodine? Cretinism, still birth, neonatal hypothyroidism, damage of hearing and brian development, can cause an enlarged thyroid gland (goitre)
16. Prevention of Iodine deficiency is consumption of iodised salt
17. Inadequate amounts of fluorine cause Dental decay
18. Measles, an infectious disease, especially of children, that causes fever and small red spots that cover the whole body is treated with Vitamin A
19. Night blindness and xerophthalmia are caused due to the deficiency of which vitamin? Vitamin A
20. Rickets in children and osteomalacia in adults are the deficiency of which vitamin? Vitamin D
21. In pregnancy, which vitamin helps the development of a baby's bones. Vitamin D
22. Which vitamin helps our body absorb calcium through the small intestine. Vitamin D
23. Lack of exposure to sunlight can lead to which vitamin deficiency? Vitmain D
24. Rickets is a preventable bone disease of early childhood, caused by which vitamin deficiency. Vitamin D
25. Vitamin E deficiencies are habitual abortion, muscular dystrophy, testicular degeneration
26. Deficiencies of Vitamin K is haemorrhage or delay in blood clotting
27. Which vitamin could prevent serious bleeding in newborn babies, including Haemorrhagic Disease of the Newborn (HDN) Vitamin K
28. Vitamin C is also called ______. Ascorbic acid
29. Vitamin C deficiencies are Swelling and bleeding of gums, anaemia and weakness
30. Deficiency of Vitamin B1 known as thiamine is Beriberi
31. Deficiency of Vitamin B3 also known as Niacin is Pellagra
32. Why is some small amount of sun exposure is needed to keep us healthy? This is because we need vitamin D which is made by the action of sunlight (UVB rays) on the skin.
33. Oral zinc is used for treating _____ in children. Diarrhoea
Inventions/Discoveries Name of the Scientist/Person
Adding Machine Pascal
Aeroplane Wright brothers
Air Brake George Westinghouse
Air Pump Otto von Guericke
Airship (rigid) G. Ferdinand Von Zeppelin
Aniline Dyes Hoffman
Antiseptic Surgery Lord Joseph Lister
Arc Lamp C. F. Brush
Archimedean Screw Archimedies
Atom Neils Bohr
Atomic Number Mosley
Atomic Physics Enrico Fermi
Atomic Structure Bohr and Rutherford
Atomic Theory Dalton
Automatic gearbox Hermann Fottinger
Automobile Daimler
Automobiles using gasoline Karl Benz
Avogadro's Hypothesis Avogadro
Bacteriology Robert Koch
Bacteriophage Max Delbruck
Bakelite Leo H Baekeland
Balloon Jacques and Joseph Montgolfier
Ball-Point Pen John J. Loud
Barometer Evangelista Torricelli
Behaviorism B. F. Skinner
Beri - Beri Eijkman
Bicycle Kirkpatrick Macmillan
Bicycle Tyre J.B. Dunlop
Bifocal Lens Benjamin Franklin
Binomial Nomenclature Carl Linnaeus
Biogenetic Principle Ernst Haeckel
Bismuth Valentine
Blood Circulation Harvey
Blood Groups Karl Landsteiner
Bomb Edward Teller
Boson S.N.Bose
Boyle's law Boyle
Braille Louis Braille
Breaking up the Nucleus of an atom Rutherford
Calculating machine Pascal
Camera George Eastman
Carburetor Gottlieb Daimler
Carburettor Gottlieb Daimler
Cash register William Burroughs
Cell Doctrine Rudolf Virchow
Celluloid A.Parker
Cement Joseph Aspdin
Cenema A.L. and J.L. Lumiere
Centrigrade scale A. Celsius
Chemical Structure August Kekule
Chemotherapy Paul Ehrlich
Child Development Jean Piaget
Chloroform James Harrison and James Young Simpson
Cholera Bacillus Robert Koch
Chromosomal Theory of Heredity Thomas Hunt Morgan
Chronometer John Harrison
Cine camera Friese-Greene
Cinematograph Thomas Alva Edison
Cinematography Thomas Alva Edison
Circulation of the Blood William Harvey
Classical Field Theory Michael Faraday
Clock (machanical) Hsing and Ling-Tsan
Clock (pendulum) C. Hugyens
Coloured Photography Lippman
Computer Charles Babbage
Continental Drift Alfred Wegener
Cosmic Rays R.A.Millikan
Crescograph J.C.Bose
Crystal Dynamics C.V.Raman
Cyclotron Lawrence
D.D.T. Dr.Paul Muller
Deciphering the genetic code Dr.Hargobiad Khorana
Deuterium (Heavy Water) H.C.Urey
Diesel Engine Rudolf Diesel
Diesel Oil Engine Rudolf Diesel
Difference engine Charles Babbage
Electrons J.J.Thomson
Laws of Planetary Motion Kepler
North Pole Robert Peary (1909)
Solar System Copernicus (1540)
South Pole Amundson (1912)
Specific Gravity Archimedes
West Indies Columbus (1492)
Drinker's Chamber of Iron Lung Dr.Philip Drinker
Dynamical theory of Heat Lord Kelvin
Dynamite Alfred B. Nobel
Dynamo Michael Faraday
Effect of Pressure on trough bodies Meghnad Saha
Eightfold Way Murray Gell-Mann
Electric Battery Alessandro Volta
Electric Flat Iron H. W. Seeley
Electric Furnace William Siemens
Electric Generator Michael Faraday
electric guitar Adolph Rickenbacker
Electric iron H.W. Seeley
Electric Lamp Thomas Alva Edison
Electric Measurement Gauss
Electric Motor (AC) Nikola Tesla
Electric razor Jacob Schick
Electrical Waves Heitz
Electricity Faraday
Electromagnet William Sturgeon
Electromagnetic Field James Clerk Maxwell
Electromagnetic Theory Maxwell
Electron Joseph J. Thomson
Electron Theory Bohr
Electronic Computer Dr. Alan M. Turing
Elevator Elisha G. Otis
Energy of the Sun Hans Bethe
Equal sign (=)? Robert Recorde
Ethology Konrad Lorenz
Eugenics Francis Galton
Evolution Charles Darwin
Evolution (theory) Charles Darwin
Evolutionary Theory Ernst Mayr
Fahrenheit Scale Fahrenheit
Film & Photographic goods Kodak
Film (with sound) Dr. Lee de Forest
Foundations of Biology Jean Baptiste Lamarck
Foundations of Mathematics Euclid
Founding of Modern Physiology Claude Bernard
Founding of Psychology Wilhelm Wundt
Fountain Pen Lewis E. Waterman
Fundamental Laws of Electric Attraction Coulomb
Galvanometer Andre-Marie Ampere
Gas lighting William Murdoch
Gasoline engine Karl Benz
Genetic Code Frederick Sanger
Geometry Euclid
Germ Theory of Disease Louis Pasteur
Glider Sir George Caley
Gramophone Thomas Alva Edison
Gun powder Rogei Bacon
Heavens William Herschel
Heavy Hydrogen Urey
Helicopter Broquett
Heliocentric Universe Nicolaus Copernicus
Helium Gas Lockyer
Homoeopathy Hahnemann
Hovercraft Christopher Cockerell
Human Sexuality Alfred Kinsey
Hydrogen Cavendish
Hydrophobia Louis Pasteur
I.Q. Test Alfred Binet
In Number Theory Ramanujam
Incandescent Bulb Edison
Induction Coil Rohm Korff
Induction of Electric Current Faraday
Insulin F.Banting
Intelligence test Binet
Internal Combustion Engine Otto
Jeans Levi Strauss
Jet Engine Sir Frank Whittle
Jet Propulsion Frank Whittle
Kala-azar Fever U.N.Brahmachari
Kaleidoscope David Brewster
Laboratory Gas Burner Robert Wilhelm Von Bunsen
Laughing Gas Priestley
Law of Electrolysis Faraday
Law of gases Gay Lussac
Laws of Electrical Resistance Ohm
Laws of Gravitation Newton
Laws of Heredity Gregory Mandel
Laws of Inheritance Gregor Mendel
Laws of Motion Newton
Laws of Multiple Proportion Dalton
Laws of Natural Selections Darwin
Life Boat Henry Great Head
Lift E.G. Otis
Lift (Elevators) Otis
Lightning Conductor Benjamin Franklin
Line of demarcation (ship) Plimsoll
Linotype Mergenthaler
Liquid Oxygen Dewar
Locomotive Richard Trevithick
Logarithmic Tables John Napier
Logarithms John Napier
Machine Gun Dr. Richard Gatling
Malarial Parasite Ronald Ross
Match (safety) J.E. Lurdstrom
Mathematical Astro Physics Chandrasekhar
Mathematical Genius Carl Gauss (Karl Friedrich Gauss)
Mauve dye Perkin
Measurement of Electrical Energy Joule, James Prescoft
Mechanical Equivalent of Heat Joules
Mercury Thermometer Fahrenheit
Meson Hideki Yakawa
Microphone Johann Phillip Reis, Alexander Graham Bell, Elisha Gray, Amos E. Dolbear, and Thomas Edison
Microscopic Anatomy Marcello Malpighi
Modern Anthropology Franz Boas
Modern Astronomy Arthur Eddington
Modern Computer John von Neumann
Modern Geology Charles Lyell
Modern Physiology William Bayliss
Modern Synthesis Theodosius Dobzhansky
Modern Telescope Edwin Hubble
Molecular Biology Francis Crick
Molecular Scattering of light in fluid Ramanathan
Montessori Method Maria Montessori
Motion of the Planets Johannes Kepler
Motor Car (petrol) Karl Butler
Movie Projector Thomas Alva Edison
Neon Gas Ramsay, Travers
Neon-lamp G. Claude
Neurophysiology Charles Sherrington
Neutron Chadwick
New Anatomy Andreas Vesalius
New Astronomy Tycho Brahe
New Science Galileo Galilei
Newtonian Mechanics Pierre Simon de Laplace
Newtonian Revolution Isaac Newton
Nuclear Fission Otto Hahn, Bohr and Fermi
Nylon Dr. Wallace H. Carothers
Nylon Plastic Carothers
Organic Chemistry Emil Fischer
Origin of Species Charles Darwin
Oxygen Priestly
Paints Shalimar
Paper clip Johann Vaaler
Parking meter Carlton Mcgee
Penicillin Alexander Fleming
Periodic Law Mendeleef
Periodic Table of Elements Dmitri Mendeleev
Pharmacology Gertrude Belle Elion
Phonograph Edison
Photograph Dauguerre
Photography (paper) W.H. Fox Tablot
Phototherapy N.R.Finsen
Pneumatic Tyres John Boyd Dunlop
Positive Electrons Anderson
Power Loom Edmund Cartwright
Powerloom Cartwright
Principle for lever (S.P.Gravity) Archimedes
Printing for the Blind Braille
Printing Press Johannes Gutenberg
Psycho-analysis Dr.Sigmund Freud
Psychology of the Unconscious Sigmund Freud
Quanta Max Planck
Quantum Cosmology Stephen Hawking
Quantum Electrodynamics Richard Feynman
Quantum Mechanics Max Born
Quantum Theory Werner Heisenberg
Quantum Theory Max plank
Raazor (safety) K.G. Gillete
Rabies Vaccine Louis Pasteur
Radar Dr. A.H. Taylor and L.C. Young
Radio G. Marconi
Radio transmitter Alexanderson
Radioactive Dating Willard Libby
Radioactivity Marie Curie
Radio-activity of Uranium Henry Becquerel
Radium Madame Curie
Railway Engine Stephenson
Raincoat Charles Macintosh
Raman effect C.V.Raman
Rare Gas Cavandish
Rayon American Viscose Co.
Razor (electric) Col. J. Schick
Refrigerator James Harrison, Alexander Catlin
Replacing human heart Christian Barnard
Revolution in Chemistry Antoine Laurent Lavoisier
Revolver Samuel Colt
Rise of German Science Hermann von Helmholtz
rubber (vulcanized) Charles Goodyear
Rubber (waterproof) Charles Macintosh
Safety lamp Sir Humphrey Davy
Safety Pin William Hurst
Safety Razor King C. Gillette
Salk Vaccine Salk
Saxophone Antoine Joseph Sax
Scientific astronomy Hippalus
Scientific Thinking Lucretius
Scooter G. Bradshaw
Seismograph Roberts Mallet
Sewing Machine Thomas Saint
Sextant Hadley
Ship (steam) J.C. Perier
Ship (turbine) Sir Charles Parsons
Shorthand Sir Isaac Pitman
Sociobiology Edward O. Wilson
Soviet Genetics Trofim Lysenko
Space flying Braun, Dr.Wernher Von
Spectroscope Bunsen
Spectroscopy Gustav Kirchhoff
Spinning frame Sir Richard Arkwight
Spinning jenny James Hargreaves
Stainless Steel Harry Brearley
Steam boat Fulton
Steam Engine James Watt
Steam engine (condenser) James Watt
Steam engine (piston) Thomas Newcome
Steam Turbine Parsons
Steel Melting Process Bessemer
Steel production Henry Bessemer
Stethoscope Dr. William Stokes, Rene Laennec
Stress Concept Hans Selye
Structural Anthropology Claude Levi-Strauss
Structure of DNA James Watson
Structure of the Atom Ernest Rutherford
Submarine David Bushnell
Sulpha Drugs Domagk
Superconductivity Heike Kamerlingh
Symbiosis Theory Lynn Margulis
Symbol (x)? William Oughtred
T.N.T. llly Brandt
Talkies Lee-de-Frost
Tank Sir Ernest Swington
Telegraph Samuel Morse
Telegraphic Code Samuel Morse
Telephone Sir Alexander Graham Bell
Telescope Galileo
Television Baird
Television (mechanical) John Logie Baird
Tempo of Evolution George Gaylord Simpson
Terylene J. Whinfield and H. Dickson
The long playing microgroove record Peter Goldmark
Theory of conditioned reflex Pavlov
Theory of Evolution Darwin
Theory of Relativity Einstein
Theory of the Atom John Dalton
Thermodynamics Ludwig Boltzmann
Thermometer Galileo Gallei
Thermos Flasks Dewar
Tractor J. Froelich
Transformer Michael Faraday
Transistor Bardeen, Shockley, Brattain
Typewriter C. Sholes
Uranium fusion Oho Hahn
Uranus (Planet) Herschel William
Vaccination Edward Jenner
Valve of radio Sir J.A. Fleming
Vitamins Hopkins and Funk
Vitamin A Elmer V. McCollum and M. Davis
Vitamin B Elmer V. McCollum
Vitamin B1 Casimir Funk
Vitamin B2 D. T. Smith, E. G. Hendrick
Vitamin Niacin Conrad Elvehjem
Vitamin Folic acid Lucy Wills
Vitamin B6 Paul Gyorgy
Vitamin C James Lind
Vitamin D Edward Mellanby
Vitamin E Herbert Evans and Katherine Bishop
Vulcanised Rubber Charles Goodyear
Washing Soda Lablanc
Watch A.L. Breguet
Waterproof Rubber Charles Macintosh
Wave Mechanics Erwin Schrodinger
Wave Theory of Light Christiaan Huygens
Wave/Particle Duality Louis Victor de Broglie
Wireless Communication Oliver Lodge
Wireless Telegraphy Marcony
World Wide Web and Hypertext Markup Language Tim Berners Lee
X - Rays Roentgen
X-ray Wilhelm Reontgen
X-ray Crystallography Max von Laue
zerox machine Chester Carlson
Zip fastener W. L. Judson
Zipper B. F. Goodrich
Approximate Year of discovery Vitamin / Chemical Name Food source Deficiency Disease
1913 Vitamin A (Retinol, retinal) Cod liver oil Night blindness,
Keratomalacia
1910 Vitamin B1 (Thiamine) Rice bran Beriberi, Wernicke-Korsakoff syndrome
1920 Vitamin B2 (Riboflavin) Eggs Ariboflavinosis
1936 Vitamin B3 (Niacin, niacinamide) Liver Pellagra
1931 Vitamin B5 (Pantothenic acid) Liver Paresthesia
1934 Vitamin B6 (Pyridoxine, pyridoxamine, pyridoxal) Rice bran Anemia, peripheral neuropathy.
1931 Vitamin B7 (Biotin) Liver Dermatitis, enteritis
1941 Vitamin B9 (Folic acid, folinic acid) Liver Deficiency during pregnancy is associated with birth defects, such as neural tube defects
1926 Vitamin B12 (Cyanocobalamin, hydroxycobalamin, methylcobalamin) Liver Megaloblastic anemia
1920 Vitamin C (Ascorbic acid) Lemons Scurvy
1920 Vitamin D (Ergocalciferol, cholecalciferol) Cod liver oil Rickets and Osteomalacia
1922 Vitamin E (Tocopherols, tocotrienols) Wheat germ oil,
Cosmetics and liver Sterility, Deficiency is very rare; mild hemolytic anemiain newborn infants
1929 Vitamin K (phylloquinone, menaquinones) Alfalfa Hemophilia, Bleeding diathesis
1. The part of flower which encloses the bud before it opens is called Sepal
2. In a flower reproductive structure inside ovary is called Ovule
3. Structure of flower where male reproduction occurs Anther
4. A thin, stem-like stalk, part of flower that supports anther (male reproduction structure) Filament
5. The female reproduction of flower consisting of ovary, stigma, and style is called Pistil
6. In flower, male reproduction consisting of filament and anther is Stamen
7. The legs of Bees covered with feather-like hairs is called Setae
8. These tissues secrete sugar-rich nectar. Nectaries
9. A green leaf-like structures at the base of the petals protecting the developing flower is called Sepals
10. The relationship between bees and sexual plants is called ______. Symbiosis
11. Death of roots due to lack of water is called Root Burn
12. Death of roots due to lack of oxygen is called Root Suffocation
13. Two examples of taproots are: Carrots, Dandelions
14. _____ are examples of plants with a fibrous root system. Grasses
15. Which part of the plant separates vascular bundle from cortex Endodermis
16. In plant transports water through the root Phloem
17. Storage of sugars and starches in plant is Cortex
18. Absorbs water and nutrients into the root Epidermis
19. Corn root is an example of _____ root. (DICOTS / MONOCOTS) Monocots
20. Sunflower root is an example of _____ root. (DICOTS / MONOCOTS) Dicots
1. Who proposed the mutation theory of evolution Hugo de Vries
2. Who proposed nebular hypothesis? Kant in 1753 A.D.
3. Who opposed the spontaneous generation theory? Louis Pasteur
4. Who is called Father of Immunology Edward Jenner
5. Who is called father of Epidemiology? John Snow
6. Which period was dominated by dinosaurs? Jurassic period of Mesozoic era
7. Which one is a inoculative infection? (Polio / Plague) Plague
8. Which one is a congenital disease? (Alcaptonuria / Allergy) Alcaptonuria
9. Which of the following gases was absent from the atmosphere of primitive earth? O2
10. What mammal lays eggs? platypus and the echidna
11. What is incubation period? Period between infection and first clinical symptoms of a disease
12. Vermiform appendix is vestigial in man due to Cooking habit
13. Vaccine having no toxicity but with antigenic property is called Toxoid
14. The weight of brain of man is _____ gms 1200 – 1400 gms
15. The waste product that is produced during cellular respiration is called Carbon dioxide
16. The scientific name of the Honeybee is Apis mellifera
17. The process by which cells release energy in food to carry on life's processes? Photosynthesis
18. The main sources of biofertilizers are ______ Bacteria, Cyanobacteria, fungi
19. The main artery that carries oxygenated blood immediately away from left ventricle of the heart is called ______. Aorta
20. The free living soil bacteria which fixes nitrogen is called Azotobacter
1. The branch dealing with the study of fossils is Palaeontology
2. The book “Origin of Species” was written by Darwin
3. The atmosphere rich in hydrogen is a _____ atmosphere Reducing
4. Stanley Miller Synthesized (Amino Acids / Carbohydrates) Amino Acids
5. Psammophytes Plants grow best in ______. Sand
6. Potato is a modified form of Stem
7. 'Poppy' a flower belongs to which plant family? Papaveraceae
8. Plants wilt due to excess of Transpiration
9. Plants that are developed in dry conditions are called xerophytes
10. Plants synthesis protein from Amino acids
11. Photosynthesis takes place faster in White light
12. Pathogen is ______. Diseae causing organism
13. Nodulated roots are found in (Apple / Pulses) Pulses
14. Name the plant organ in which photosynthesis usually takes place. Leaf
15. Name the galaxy to which our earth belongs. Milky way
16. Most part of water needed by plants is absorbed through their Root hairs
17. Most animal eukaryotic cells have: A plasma membrane, nucleus, and cytoplasm
18. Measles vaccine was first discovered by John F. Enders
19. Linseed oil comes from which plant? Flax
20. Life originated in (Air/Water) Water
1. Life has originated due to (Chemical evolution / Effects of sunshine) Chemical evolution
2. Java ape man was discovered by Dubois
3. Inoculation preventing method is called _____ Vaccination
4. Fever causing substance is called Pyrogen
5. Distribution of living organisms on earth is Biogeography
6. Digests waste products and worn-out cell parts are called ______. Lysosomes
7. Cosmozoic theory was proposed by Arrhenius
8. Chloroplasts contain a green pigment called ______. Chlorophyll
9. Cells that DO NOT have a nucleus are called Prokaryote Cells
10. Cells having a nucleus is called Eukaryote Cells
11. Blood pressure to skeletal muscle is increased by Norepinephrine
12. Biogenetic law was proposed by Haeckel
13. Biogenesis was first proposed by _____. Francesco Redi
14. B-cells are stimulated to produce antibodies by Helper T-cells
15. Approximate age of the earth is _____. 4.5 x 109 years
16. A tissue Phloem is found in Plants
17. A plant that grows in saline water is called ______. Halophytes
18. A group of similar cells that work together is called ______. Tissue
19. a folded membrane that moves materials around in the cell is called Endoplasmic Reticulum
20. ______ releases energy for the cell. Cell Membrane
1. Genetics is science of Heredity and variations
2. Sericulture deals with Rearing of silk worms
3. Depleting source of energy is fossil fuels
4. Non renewable source of energy is coal resources
5. Who postulated the cell theory? Schleiden and Schwann
6. Study of the behaviour of animals is called Fossils
7. Who studied structure of human body for the first time? Andreas Vesalius
8. Recapitulation Theory was proposed by: Haeckel
9. The term ‘Protoplasm’ was coined by: H. V. Mohl
10. The term antibiotic was coined by Selman Waksman
11. Bacteria was first observed by Antony van Leeuwenhock
12. In human body the longest muscle which goes from back to the knee is Sartorius
13. Vaccination against small pox was developed by Edward Jenner
14. The name of Dr. Normal Borlaug is associated with Green revolution
15. Maximum alcohol is obtained from sugarcane
16. Gasohol mixture is useful as automobile fuel
17. The liquid hydrocarbon is latex
18. The hybridoma technique was developed by Georges Kohler and Cesar Milstein
19. Vitamin B1 was first isolated by Funk
20. What is the chemical name of Vitamin C? Ascorbic acid
21. What are the food sources of Vitamin E? Wheat germ oil, unrefined vegetable oils
22. EEG is an index of Brain functions
23. The disease of liver caused by excessive use of alcohol is Cirrhosis
24. Amphetamine is a Synthetic stimulant
25. Universal Immunization Programme was started in 1985
26. Opium is derived from which part of white poppy plant? Fruit
27. The highly poisonous chemical derived from tobacco is Nicotine
28. The chemical which relieves from pain is called Analgesic
29. Marijuana is derived from Cannabis sativa
30. The full form of LSD is Lysergic Acid Diethylamide
31. LSD is derived from Argot fungus
32. Valium is a Tranquilliser
33. Psychosis is Mental illness
34. BCG is used against Tuberculosis
35. Rh-factor was first discovered in Monkey
36. Myocardial infarction is a disease of Heart
37. Who received Nobel Prize for peace for his work on wheat and rice? Norman Bourlog
38. Who is the author of ‘Historia Plantarum” Theophrastus
39. A dicot plant without cotyledons is called Dodder Plant (Cuscuta)
40. The branch of biology which deals with identification of disease and its pathogen is Pathology
41. Absence of one sex chromosome causes Turner's syndrome
42. In jaundice the amount of _____ increases in blood. Bilirubin
43. An increased amount of blood glucose is called Hyperglycemia
44. Muscarine / Muscarin a natural product is found in Mushrooms (Inocybe and Clitocybe species)
45. Muscarinic agonists are used as drugs in treating Glaucoma, Urinary Retention, and Xerostomia.
46. Insulin from a dog’s pancreas was first isolated by Banting and Best
47. The two chains of human insulin molecule are interconnected by Disulphide bond
48. The first genetically engineered human insulin was produced in 1983
49. The technique used for virus detection both in plants and animals is ELISA – Enzyme linked immunoabsorbent assay
50. The term ‘enzyme’ meaning, in yeast was advocated by William Kuhne
1 Down’s syndrome is also called 21-Trisomy
2. Gout is a ______ disease Degenerative
3. Polio is also called Infantile paralysis
4. The two types of growth curves are Sigmoid and J-shaped
5. The Biogenetic Law was proposed by Haeckel
6. The term species was coined by John Ray
7. The “power house” of a cell is Mitochondrion
8. The young one of cockroach is called Nymph
9. ATP was discovered by Karl Lohman
10. DNA finger printing technique was first developed by Jeffreys, Wilson and Thien
11. The Law of Limiting Factors was proposed by F.F. Blackman
12. The first antibiotic was discovered by A. Fleming
13. Balance Theory of sex determination was proposed by Calvin B. Bridges
14. The Primary visual area is located in Occipital lobe
15. The scientific name of zebu is Bos indicus
16. Motor cells are found in Upper epidermis of monocot leaf
17. Volkman’s canals occur in Bone
18. The lacteals are found in Villi
19. Choroid plexus is a network of Capillaries
20. The term ecology was coined by Reiter
21. Diastase was identified for the first time in 193 by Peyen and Persoz
22. Enzyme used to flavour soft drinks is Glucoamylases and Glucoisomerases
23. The first vitamin produced during a fermentation process using a wild bacterium is ______. Vitamin C
24. Deficiency diseases like Rickets and Osteomalacia are due to the lack of which vitamin? Vitamin D
25. The syndrome of symptoms caused by over-retention of vitamins in human body is known as Hypervitaminosis
26. The function of artificial kidney sis based on Physical laws of diffusion and osmosis
27. Thickening of the walls of arteries is known as Atherosclerosis
28. The first human hormone produced by recombinant DNA technology was (Insulin/Estrogen) Insulin
29. Mood altering drugs are called Psychedelic drugs
30. _______ are used as pain killers Opiates
31. Cirrhosis is caused due to excessive use of Alcohol
32. The carcinogen (cancer causing agent) present in tobacco is Benzpyrene
33. Fatty acid syndrome due to alcoholism is called Cirrhosis
34. Cancers located in connective tissues are called Sarcoma
35. Rheumatic heart disease (RHD) is associated with Bacterial infection
36. The technique used to know the genetic disorders in the foetus is called Amniocentesis
37. Name the substances present in the birth control pills. Progestins
38. The techniques used for male sterilization is called Castration
39. The surgical cutting of fallopian tubes of female is called Tubectomy
40. Vasectomy is the surgical cutting of Vasa deferentia
41. Viability period of human ovum is ______. Two days
42. Individuals with no melanin in their skin, hair and iris are called Albions
43. An extra X-chromosome in male causes _______ syndrome. Klinefelter’s
44. Spreading of cancerous tumours to different organs is called Metastasis
45. Cancer causing agents are Carcinogens
46. The vaccine that is used against tuberculosis is BCG
47. Elephantiasis is caused by Wuchereria bancrofti
48. A toxin released by Tuberculosis bacteria is called Tuberculin
49. Where does ependymal cells occur? Lining the cavities of brain and spinal cord
50. Which tissue contains Haversian canals? bone of mammals
1. Which layer of the skin prevents water exchange? Horny layer (stratum corneum) of epidermis
2. Which Epithelium lines the urinary bladder in the ureters? Transitional epithelium/ urothelium
3. Which are the smallest blood corpuscles? RHCs
4. In ABO blood groups, how many phenotypes are found? Four
5. Old RBCs are destroyed and buried in Spleen
6. Without which corpuscles blood clotting is not possible. Thrombocytes
7. Insufficient quantities of antidiuretic hormone in blood lead to Diabetes insipidus
8. Blood cells involved in inflammatory reactions are Basophils
9. Cells lining the blood capillaries are called Endothelial cells
10. During contraction what prevents backflow of blood inside the heart? Valves in heart
11. Graveyard in RBCs is Spleen
12. The pigment found in red muscle fibres is Myoglobin
13. Ends of two bones are connected by Ligaments
14. Haversian canals are found in Long bone of rat
15. Formation of muscle cells during embryonic development is called Myogenesis
16. In a flowering plant, the pollen tube first arrives in A synergid
17. Littoral zone is located along the Sea
18. Spirochetes are Bacteria
19. Elaioplasts store Fats
20. Thymosin hormone is secreted by Thymus gland
21. Vomiting centre is located in the Medulla oblongata
22. 'Balancing selection' in humans promotes Heterozygotes
23. Maltose gives rise to 2 molecules of Glucose
24. Chimera is produced due to Somatic mutations
25. Corpus luteum releases Estrogen and progesterone
26. The number of autosomes in human primary spermatocyte is 44
27. Rotenone is a Bioinsecticide
28. Respiratory Quotient (R.Q.) is represented by CO2/O2
29. Gynaecomastia is the symptom of Klinefelter’s syndrome
30. The yellow-coloured milk secreted by cattle soon after the birth of a calf is called Colostrum
31. Which part of alimentary canal receives bile from the liver? Small intestine
32. In which part of the alimentary canal food is finally digested? Small intestine
33. Where does the exchange of gases take place during respiration? alveoli of lungs
34. What are the filtration units of kidneys called? nephrons
35. During photosynthesis oxygen is liberated. It comes from ______. water
36. Bowman's glands are found in Olfactory epithelium
37. Protein part of a Holoenzyme is called Apoenzyme
38. The opening and closing of the stomatal pore depends upon water in guard cells
39. most plants absorb nitrogen in which forms Nitrates, Nitrites and urea
40. The first enzyme to mix with food in the digestive tract is Amylase
41. Name some organisms in which food material is broken down outside the body and absorbed? Yeast, mushroom, bread mould
42. Testosterone increases the fertility in males. True
43. The junction between two neurons is called synapse
44. State True or False.
Posture and balance of the body is controlled by medulla. False, Correct answer is: cerebellum
45. State True or False.
Spinal cord originates from cerebellum False, Correct answer is: medulla
46. State True or False.
Abscisic acid in plants promotes growth of stem. False, Correct answer is: inhibit growth
47. State True or False.
Iodine is necessary for the synthesis of adrenaline. False, Correct answer is: Thyroxin
48. State True or False.
Insulin regulates growth and development of the body True
49. State True or False.
Thyroxin regulates carbohydrates, protein and fat metabolism in the body True
50. State True or False.
When blood leaves the tissues it becomes richer in water. False, Correct answer is: carbon dioxide
1. A compound which contains only hydrogen and Carbon is called a Hydrocarbon
2. A deviation of light passing from one medium to another is known as Refraction
3. A fungus which can only survive on other living organisms is called Obligate Parasite
4. A machine used for converting mechanical energy into electrical energy is called a Generator
Inverter
5. A plant adapted for growth in water is called a Hydrophyte
6. A plant adapted to live in dry places is called a Xerophyte
7. A plant which lives in the dark is called Scotophyte
8. A tangent galvanometer is used to study the Strength of direct current
9. A thermocouple is used to measure Temperature
10. Al stands for Aluminium
11. An altimeter is used for measuring Altitude
the height above sea level
12. An ammeter is used to measure Electric current
13. An apparatus for generation of atomic energy is called a Reactor
14. An Electroscope is used to Detect charges on a body
15. Where does groundwater flow when it comes out of the ground? Lakes, rivers, and streams
16. Atomic Energy Commission is located at Mumbai
17. Auriscope is used to detect Ear disorders
18. Bhaskara I was a famous Astronomer
19. Bi stands for Bismuth
20. Biomass energy is formed through Photosynthesis
1. Botany is the study of Plant life
2. Calcium oxide is commonly known as Quick lime
3. Calcium sulphate is commonly called Plaster of Paris
4. Calorimeter is used to measure Quantity of heat
5. Central Tobacco Research Institute is located at Rajahmundry
6. Cloves, used as a spice, are derived from which of the plant parts Flower buds
7. Crescograph is used to measure the Rate of growth of a plant
8. Which chemical element has the symbol Au? Gold
9. Dactylography is the study of Finger Prints
10. Dynamics is the study of Movements of bodies
11. Entomology is the study of Insects
12. From which areas of space can there be no escape? black holes[1]
13. Fruits that are formed without fertilization are called Parthenocarpic
14. Galileo's first scientific discovery was Pendulum
15. Gd stands for Gadolinium
16. Ground water runs in underground rivers. Trye/False False
17. Herpetology is the study of Reptiles
18. How many moons does Mars have? Two
19. How many time zones are there on Earth? Four
20. How many units of alcohol in a glass of wine? One
1. How much urine does the average person produce in a typical day? 1.5 - 2 litres
2. How much of the world's water is suitable for human use? 0.25 per cent
3. Ichtyology is the study of Fishes
4. Indian Institute of Horticultural Research is located at Bangalore
5. Which chemical weapon used in Vietnam was first discovered in animal urine? Phosphorous
6. Which country was the first to make fireworks? China
7. Which group of animals don't urinate? Fish
8. Which plant makes Aspirin? White Willow
9. Which sea is the saltiest natural lake and is also at the lowest elevation on the face of the earth? The Dead Sea
10. Logarithms were devised by John Napier
11. Manganese was discovered by Gahn
12. Mechanics is the study of Forces acting on bodies
13. Michael Faraday worked as an assistant under another scientist whose name was Sir Humphry Davy
14. Name the famous mathematician/physicist who was born in the year Galileo died. Newton
15. Name the process of large energy production in the Sun? Nuclear fusion
16. Name the three common gases found in farts CH4 (methane); H2S (hydrogen sulphide); NH3 (ammonia)
17. Name two poor conductors of heat. Lead and Mercury
18. Name two tissues that provide control and coordination in multicellular animals Nervous and muscular tissues.
19. National Science Centre is located at New Delhi
20. Nickel was discovered by Cronstledt
1. Oology is the study of Birds eggs
2. Ornithology is the study of Birds
3. Osteology is the study of Bones
4. Paleontology is the study of Fossils
5. Penicillin is obtained from Mould
6. Phycology is the study of Algae
7. Plant that eat insects are called Insectivorous plants
8. Plants get their nitrogen from: Soil
9. Plants that flower only once in their lifetime are called Mono carpic
10. Psychology is the study of Human mind
11. Sodium carbonate is commonly called Washing Soda
12. Sodium chloride is commonly known as Common Salt
13. Space Applications Centre is located at Ahmedabad
14. Spectroscopy is the study of Anders John Angstrom
15. Statics is the study of Forces acting on bodies at rest
16. Tata Institute of Fundamental Research was established in 1945
17. The ______stage of the butterfly is the last stage when the butterfly has wings and can fly. adult
18. The acid used in a car battery is Sulphuric acid
19. The Atomic Energy Commission was set up in August 1948
20. The atomic number of oxygen is Eight
1. What is the most common chemical element in the universe? Hydrogen
Hydrogen is a colourless gas that is the lightest of all the elements. It combines with OXYGEN to form water.
2. What is the name for steel alloyed with chromium? Stainless steel
3. What is the name of the first atomic-powered submarine? Nautilus
4. What is the name of the hormone that controls blood sugar level? Insulin
a chemical substance produced in the body that controls the amount of sugar absorbed by the blood
5. What is the name of the hot rock that is in the center of the earth? Magma
very hot liquid rock found below the earth’s surface
6. What is the name of the whale that has a long protruding tusk? Narwhal
7. What is the name we give to the black salted fish eggs of a sturgeon fish? Caviar
the eggs of some types of fish, especially the STURGEON, that are preserved using salt and eaten as a very special and expensive type of food
8. What is the PH of water? Seven
9. What is the rest mass of a photon? Zero
10. What is tonic water flavoured with? Quinine
11. What land mammal holds the record for the greatest age? Man
12. What name is given to the hard white material of elephant’s tusks? Ivory
A hard yellowish-white substance like bone that forms the TUSKS (long teeth) of elephants and some other animals
13. What poisonous alkaloid is extracted from tobacco leaves and widely used as an insecticide (a chemical used for killing insects)? Nicotine
14. What state in the United States has the most nuclear power plants? Illinois
15. What vegetable gives green pasta its color? Spinach
16. What yellow metal is an alloy of copper and zinc? Brass
17. Where do peanuts grow? Underground
18. Where does the alcohol in wine come from? Yeast
a FUNGUS used in making beer and wine, or to make bread rise
19. Where is alcohol destroyed in the body? The liver
20. Where does groundwater come from? Rainfall and melting snow
. Which human activity uses the most water? Irrigation
70 per cent of all water is used for irrigation.
2. Water on the earth exists in all three states of matter______. solid, liquid, and gas
3. What are the only places that dogs have sweat glands? Nose and paws
4. What are the two main components of our environment? Biotic and abiotic factors
5. What do we call a person who cannot tell the difference between colors? Color blind
6. What gas are the bubbles in Champagne? CO2
7. What grain is beer usually made from? Barley
a plant grown for its grain that is used for making food, beer and WHISKY
8. What household heating fuel also powers jet planes? Kerosene
9. What is another name for the Paleolithic Age? The stone age
10. What is cork made from? The bark of a cork oak tree
11. What is E300? Vitamin C
12. What is red wine supposed to protect you from? Heart disease
13. What is the better known name for the deadly poison prussic acid? Cyanide or hydrogen cyanide
14. What is the chemical name for vinegar? Acetic acid
15. What is the common name for NaCl? Salt
16. What is the difference between sweet and dry wines? Sugar content
17. What is the essential ingredient of Mead? Honey
18. What is the fastest living thing on two legs? An ostrich
19. What is the favorite food of a giant panda? Bamboo shoots
20. What is the main ingredient of Alka Seltzer? Sodium Bicarbonate
1. The symbol He stands for Helium
2. The symbol Md stands for Mendelevium
3. The symbol of gold is Au
4. The symbol of silicon is Si
5. The symbol of silver is Ag
6. The symbol of sodium is Na
7. The symbol of Sr stands for Strontium
8. The symbol of titanium is Ti
9. The symbol Rb stands for Rubidium
10. The symbol Zn stands for Zinc
11. The symbol Zr stands for Zirconium
12. The three states of matter are Solid,liquid and gas
13. The two colours seen at the extreme ends of the pH chart are Red & Blue
14. The unit of loudness is Phon
15. The unit of power is Watt
16. Thermostat is an instrument used for regulating Constant temperature
17. Toxicology is the study of Poisons
18. Unlike most other fish, sharks have no: Bones
19. Virology is the study of Viruses
20. Why food articles are mostly packed in alluminium foil? To avoid rancidity
1. The basic building blocks of proteins are Amino acids
2. The biggest plant seed is Cocodemer
3. The botanical name for brinjal is Solanum melongenal
4. The botanical name for onion is Allium Cepa
5. The botanical name for rice is Oryza Sativa
6. The botanical name of tea is Camellia Sinensis
7. The botanical name of the cotton plant is Gossipium Hirsutum
8. The chemical formula of chloroform is CHcl3
9. The chemical formula of common salt is Nacl
10. The chemical formula of lime soda is CaCO3
11. The chemical formula of sodium bicarbonate is NaHCO3
12. The chemical formula of washing soda is Na2CO3, IOH2O
13. The chemical name of baking powder is Sodium bicarbonate
14. The chemical name of bleaching powder is Calcium hypochlorite
15. The chemical name of Chloroform is Trichloromethane
16. The formula C6H5OH stands for Phenol
17. The formula CHCI3 stands for Trichloromethane
18. The formula H2O2 stands for Hydrogen peroxide
19. The formula H2SO4 stands for Sulphuric Acid
20. The formula HCL stands for Hydrochloric Acid
1. The liquid used to preserve specimens of plans and animals is Formalin
2. The metal used in storage batteries is Lead
3. The molecular formula of cane sugar is C12H22O11
4. The most serious environmental pollution from a nuclear reactor is: Thermal pollution
5. The principal metal used in manufacturing steel is Iron
6. The response of a plant to heat is called Thermotropism
7. The response of a plant to touch is called Trigmotropism
8. The role of heredity was demonstrated by Mendel
9. The science of organic forms and structures is known as Morphology
10. The scientific name for blood platelets is Thrombocytes
11. The scientist who developed the Quantum theory was Max Plonck
12. The smallest flowering plant is Worffia
13. The study of antiquities is known as Archaeology
14. The study of bacteria is known as Bacteriology
15. The study of grasses is known as Agrostology
16. The study of heavenly bodies is called Astronomy
17. The study of poisons is called: Toxicology
18. The study of sound is called Acoustics
19. The study of the duration of life is known as Chronobiology
20. The study of tissues is called Histology
NORMAL BODY TEMPERATURE - 98.4F
BLOOD GROUP CALLED "UNIVERSAL DONOR " - O GROUP
CIRCULATORY SYSTEM’S POWER SUPPLY - HEART
ORGAN REMOVES WASTES AND EXCESS WATER FROM THE BLOOD - KIDNEY
STUDY OF TWINS - GEMELLOLOGY
NATIONAL SCIENCE DAY - FEBRUARY 28
NUMBER OF BONES IN THE HUMAN BODY - 206
"BLOOD GROUP CALLED "UNIVERSAL RECIPIENT " - AB GROUP
SIGNIFICANCE OF FEBRUARY 28 ( SCIENCE DAY) - DISCOVERY OF RAMAN EFFECT
FIRST ANTIBIOTIC DRUG - PENCILLIN
WORLDS BIGGEST WATER PLANT - AMAZON WATER LILLY
ORGAN CONTROLS BODY TEMPERATURE - SKIN
HARDEST SUBSTANCE IN THE HUMAN BODY - TOOTH ENAMEL
DISEASE CAUSED BY THE BITE OF A MAD DOG - HYDROPHOBIA
DEFICIENCY OF VITAMIN DLEADS TO - RICKETS
A HUMAN HEART HAS HOW MANY CHAMBERS - FOUR
THE BALANCING ORGAN OF OUR BODY - EAR
WHAT IS CALLED SUICIDAL BAGS - LYSOSOME
THE SMALLEST BONE IN THE HUMAN BODY - STAPES
VITAMIN WHICH IS PRODUCED BY THE SUNLIGHT - VITAMIN D
THE COLOURING PIGMENT OF BILE? - BILIRUBINE
THE ENZYME WHICH DIGEST THE PROTEIN? - PEPSIN
THE ENZYME WHICH DIGEST THE FAT ? - LIPASE
THE ENZYME WHICH DIGEST THE STARCH? - AMYLASE
WHICH WAS THE FIRST METAL MADE BY MAN? - COPPER
WHICH IS KNOWN AS ANIMAL STARCH? - GLYCOGEN
UNIT OF LOUDNESS OF SOUND? - DECIBEL
UNIT OF ELECTRIC CURRENT? - AMPERE
STEAM ENGINE? - JAMES WATT
RADIO ACTIVITY ? - HENTRY BECQUEREL
FIRST HEART TRANSPLANT OPERATON? - CHRISTAIN BARNARD
THE FIRST INDIAN SATELLITE? - ARYBHATTA
INDIAS FIRST NUCLEAR EXPLOSION? - POKHRAN
NOBEL PRIZE IN CHEMISTRY AND PHYSICS? - MARIE CURIE
CHARLS DARWIN BELONGS TO? - BRITAIN
THEORY OF RELATIVITY - EINSTEIN
QUANTUM THEORY - MAX PLANK
X-RAYS - RONTGEN
DNA DOUBLE HELIX MODEL - WATSON AND CRICK
DEFICIENCY OF VITAMIN C LEADS TO - SCURVY
PROLONGED BLEEDING DUE TO - DEFICIENCY OF VITAMIN K
TO MEASURE ATMOSPHERIC PRESSURE - BAROMETER
STUDY OF BIRDS - ORNITHOLOGY
STAMP COLLECTION - PHILATELY
STUDY OF COINS - NUMISMATICS
SCIENCE OF OLD AGE - GERENTOLOGY
ANTI TUBERCULOSIS VACCINE - BCG
DRY ICE - SOLID CARBON DIOXIDE
GREEN PIGMENT IN PLANT LEAF - CHLOROPHYL
ALZHEIMER DAY OBSERVED IN - SEPTEMBER 21
ASTRONOMICAL MEASURE OF DISTANCE - LIGHT YEAR
NATURE AND PROPERTIES OF LIGHT - OPTICS
POMOLOGY IS THE STUDY OF - FRUITS