Chemistry MCQ – Series 2

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21) The flash point in India lead is fixed at _

a) 44⁰C

b 35⁰C

c) 22.8⁰ C

d) 30⁰ C

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22)Petroleum is found –

a) On the surface of the earth

b) In the atmosphere

c) In arctic ocean

d) Deep under the surface of the earth

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23) Acidic hydrogen is present in _

a) Ethyne

b) Ethene

c) Benzene

d) Ethane

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24) Domestic cooking gas consists of mostly _

a) Methane and ethane

b) Liquified butane and iso-butane

c) Ethylene and carbon monoxide

d) Hydrogen and acetylene

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25) Which one of the following is the heterocyclic compound ?

a) Pyrene

b) Thiophene

c) Phenol

d) Aniline

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26)The name fire damp is given to _

a) Methane

b) Ethane

c) Propane

d) Butane

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27) The vapour density of a volatile substance is 4(CH₄=1) .Its molecular mass would be _

a) 2

b) 8

c) 64

d) 128

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28) Which of the following are the names of cyclic ether _

a) Oxirane

b) Epoxyalkane

c) Alkene oxide

d) Carbinol

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29) Hexachlorobenzene is known as _

a) Pyrene

b) Artificial silk

c) Gammexane

d) Artificial camphor

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30) Glucose has how many optical isomers ?

a) 8

b) 12

c) 16

d) Cannot be predicted

Thank You!