GK Questions on Metal and Alloys for Competitive Exams

Chemistry GK

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Q.11 Which one of the following does not contain silver?

A. Horn silver
 B. Ruby silver
 C. German silver
 D. Lunar caustic

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Q.12 Nail polish remover contains

A. acetone
 B. benzene
 C. acetic acid
 D. petroleum ether

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Q.13 What is a mixture of potassium nitrate powdered charcoal and sulphur called?

A. paint
 B. glass
 C. gun powder
 D. cement

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Q.14 Which is the heaviest metal?

A. iron
 B. mercury
 C. nickel
 D. osmium

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Q.15 Bleaching action of chlorine is by

A. oxidation
 B. reduction
 C. decomposition
 D. hydrolysis

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Q.16 Radon is

A. germon radio
 B. inert gas
 C. artificial fibre
 D. an explosive

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Q.17 pH of water is

A. 4
 B. 7
 C. 12
 D. 18

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Q.18 pH of blood is

A. 4
 B. 6.4
 C. 7.4
 D. 8

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Q.19 Natural rubber is a polymer derived from

A. isoprene
 B. ethylene
 C. propylene
 D. butadiene

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Q.20 First atomic theory was proposed by

A. John Dalton
 B. E.Rutherford
 C. De Broglie
 D. D.I.Mendeleef

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