GENERAL SCIENCE QUIZ - 1 | RRB | SSC

1. What is the maximum limit of sound intensity in decibel units beyond which a human being cannot hear?
a) 80 decibel
b) 85 decibel
c) 90 decibel
d) 95 decibel

2. Who proposed the ‘Wave Theory’ of light?
a) Huygens
b) Albert Einstein
c) Isaac Newton
d) Thomas Edison

3. If a bar magnet is broken into two pieces, then
a) one piece will have North Pole on both ends and other piece will have South Pole on both ends
b) only longer piece will behave as bar magnet
c) each piece will remain a magnet with North Pole at one end and South Pole at the other end
d) both pieces will lose their magnetism

4. Which of the following is the lightest metal ?
a) Mercury
b) Silver
c) Lithium
d) Lead

5. The most important ore of Aluminium is–
a) Bauxite
b) Calamine
c) Calcite
d) Galena

6. The element present in the largest amount in rocks and minerals is–
a) Carbon
b) Silicon
c) Hydrogen
d) Aluminium

7. The chemical name of Urea is–
a) Aneurin
b) Chloroetane
c) Carbamide
d) None of these

8. Permanent hardness of water can be removed by adding–
a) Potassium Permanganate
b) Chlorine
c) Bleaching Powder
d) Washing Soda

9. The formula of Plaster of Paris is–
a) CaSO4
b) CaSO4, 2H2O
c) 2CaSO4, 4H2O
d) 2CaSO4, H2O

10.  Liquefied Petroleum gas (LPG) consists of mainly–
a) Methane, Ethane and Hexane
b) Ethane, Hexane and Nonane
c) Methane, Butane and Propane
d) Methane, Hexane and Nonane

11. The metal that is present in Photo Films is–
a) Mercury
b) Platinium
c) Magnesium
d) Silver

12. Which of the following is in liquid form at room temperature ?
a) Cerium
b) Sodium
c) Francium
d) Lithium

13. The property of a substance to absorb moisture from the air on exposure is called–
a) Osmosis
b) Desiccation
c) Efflorescence
d) Deliquescene

14. Brass gets discolored in air due to the presence of which gas in air–
a) Carbon dioxide
b) Oxygen
c) Hydrogen Sulphide
d) Nitrogen

15. Quartz crystals normally used in quartz clocks etc. is chemically–
a) Sodium Silicate
b) Silicon dioxide
c) Germenium dioxide
d) A mixture of (a) and (c)

16. Which of the following elements is non-radioactive?
a) Uranium
b) Thorium
c) Plutonium
d) Zirconium

17. According to Dalton’s atomic theory the smallest particle which can exist independently is–
a) An atom
b) A molecule
c) A cation
d) An anion

18. The recent atomic weight scale is based on–
a) 1H1
b) 1H2
c) 6C12
d) 8O16

19. Diamond is an allotropic form of:
a) Uranium
b) Carbon
c) Silicon
d) Sulphur

20. Cell membrane is–
a) permeable
b) selectively permeable
c) semipermeable
d) impermeable

Answers:

1. (Ans : B)
2. (Ans : A)
3. (Ans : C)
4. (Ans : C)
5. (Ans : A)
6. (Ans : B)
7. (Ans : C)
8. (Ans : D)
9. (Ans : D)
10. (Ans : C)
11. (Ans : D)
12. (Ans : C)
13. (Ans : D)
14. (Ans : C)
15. (Ans : B)
16. (Ans : D)
17. (Ans : A)
18. (Ans : C)
19. (Ans : B)
20. (Ans : C)

24. Cell membrane is–
(A) permeable (B) selectively permeable
(C) semipermeable (D) impermeable (Ans : C) - See more at: http://www.allexamgurublog.com/2008/12/general-science-objective-questions.html#sthash.KiVkLRvu.dpuf

24. Cell membrane is–
(A) permeable (B) selectively permeable
(C) semipermeable (D) impermeable (Ans : C) - See more at: http://www.allexamgurublog.com/2008/12/general-science-objective-questions.html#sthash.KiVkLRvu.dpuf

24. Cell membrane is–
(A) permeable (B) selectively permeable
(C) semipermeable (D) impermeable (Ans : C) - See more at: http://www.allexamgurublog.com/2008/12/general-science-objective-questions.html#sthash.KiVkLRvu.dpuf