Quiz 2- Chemistry-General Science: General Knowledge Question & Answers

11 Q) The charcoal use to decolourise raw sugar is

(a) animal charcoal
(b)sugar charcoal
(c) coconut charcoal
(d) wood charcoal

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D

12 Q) The most abundant metal in the earth’s crust is

(a) zinc
(b) copper
(c) aluminium
(d) iron

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C

13 Q) Production of chlorofiuorocarbons (CFC) gas which is proposed to be banned in India, is used in which of the following domestic products ?

(a) Television
(b) Tubelight
(c) Cooking gas
(d) Refrigerator

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D

14 Q) The gas used to extinguish fire, is

(a) neon
(b) nitrogen
(c) carbon dioxide
(d) carbon monoxide

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C

15 Q) In which of the following activities silicon carbide is used ?

(a)Making cement and glass
(b)Disinfecting water of ponds
(c)Making casts for statues
(d)Cutting very hard substances

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D

16 Q) The element common to all acids is

(a)carbon
(b) hydrogen
(c) oxygen
(d) sulphur

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B

17 Q) Gobar gas contains mainly

(a)methane
(b)carbon dioxide
(c) butane
(d)carbon monoxide

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A

18 Q) The most malleable metal is

(a)Silver
(b)Gold
(c) Aluminium
(d)Sodium

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B

19 Q) Tetraethyl lead is used as

(a) mosquito repellent
(b)painkiller
(c) fire extinguisher
(d)petrol additive

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D

20 Q) Which of the following is used in beauty parlours for hair setting?

(a) Chlorine
(b)Sulphur
(c) Phosphorus
(d)Silicon

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B