GENERAL SCIENCE #9
MULTIPLE CHOICE QUESTIONS
1. Temperature
of a body is due to which of the following?
(a) Repulsive forces between the molecules
(b) Potential energy of the molecules
(c) Kinetic energy of the molecules
(d) Attractive forces between the molecules
Answer:
(c)
2. Heat
flows from one body to another because of their difference in which of the following?
(a) Thermal capacity
(b) Nature
(c) Temperature
(d) Specific heat
Answer:
(c)
3. A
man pushes a wall but fails to displace it. He does which of the following?
(a) Positive but small work
(b) Positive and maximum work
(c) Negative work
(d) No work at all
Answer:
(d)
4. What
is the SI unit of density?
(a) Pascal
(b) Watt
(c) kg/m3
(d) Joule
Answer:
(c)
5. What
is the SI unit of charge?
(a) Coulomb
(b) Hertz
(c) Candela
(d) Fathom
Answer:
(a)
6. Newton
or kilogram is unit of which of the following?
(a) Force
(b) Weight
(c) Frequency
(d) Charge
Answer:
(b)
7. Diamond
used in jewellery is which of the following?
(a) A metal
(b) A compound
(c) A mixture of compounds
(d) An element
Answer:
(d)
8. How
many types of atoms are present in carbon dioxide?
(a) Two types
(b) Four types
(c) One type
(d) Three types
Answer:
(a)
9. Which
of the following is not an electromagnetic radiation?
(a) X-rays
(b) Ultraviolet rays
(c) Cathode rays
(d) Infrared rays
Answer:
(c)
10. α-particle
is identical with which of the following?
(a) Deuterium nucleus
(b) Positron
(c) Protium nucleus
(d) Helium nucleus
Answer:
(d)
11. Which
is more massive among the following?
(a) Protons
(b) Mesons
(c) Electrons
(d) Neutrons
Answer:
(d)
12. Which
is the lightest particle among the following?
(a) Positron
(b) α-particles
(c) Proton
(d) Neutron
Answer:
(a)
13. Bohr’s
atomic model is based on which of the following?
(a) Theory of electrolytic dissociation
(b) Quantum theory
(c) Law of mass action
(d) Dalton’s atomic theory
Answer:
(b)
14. Among
which of the molecules are not carbohydrates?
(a) Glycogen
(b) Haemoglobin
(c) Lactose
(d) Cellulose
Answer:
(b)
15. Saliva
helps in the digestion of which of the following?
(a) Proteins
(b) Fibres
(c) Fats
(d) Starch
Answer:
(d)
16. How
many times does the heart beat in one minute?
(a) 50 times
(b) 60 times
(c) 72 times
(d) 90 times
Answer:
(c)
17. Vitamin-A
is found abundantly in which of the following?
(a) Maize grains
(b) Brinjal
(c) Carrot
(d) Onion bulb
Answer:
(c)
18. Which
gland secretes the most kinds of hormones?
(a) Hypothalamus
(b)Thyroid
(c) Pituitary
(d) Adrenal
Answer:
(c)
19. What
should be given to an athlete for instant energy?
(a) Vitamin
(b) Protein
(c) Carbohydrate
(d) None of the above
Answer:
(c)
20. Maximum
absorption of food takes place in which of the following?
(a) Large intestine
(b) Small intestine
(c) Oesophagus
(d) Stomach
Answer:
(b)
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