Question # 1

Which one is heterocyclic compound?

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Benzene

Cyclobutane

Thiophene

Nephthalene

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

The branch of chemistry which deals with the study of hydrocarbons and their derivatives is known as.

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Organic chemistry

Inorganic chemistry

Biochemistry

Nuclear chemistry

Which one contains double covalent bound?

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Pentane

Ethylene

Acetylene

All

The 1st organic compound prepared in laboratory.

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Urea

NaCl

Thiourea

Pyridine

Which of the following is the hardest coal?

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Pear

Lignite

Bituminous

Anthracite

Number of discovered element till today are.

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140

118

90

16

General formula of Alkyl radical is..

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C₆H_2n-2

C_nH_2n+2

C₁₁H_2n-1

C_nH_2n-2

The % age of carbon in peat is :

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60%

70%

80%

90%

What is the percentage of carbon in anthracite?

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60%

70%

80%

90%

Petroleum is refined by:

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destructive distillation

fractional distillation

simple distillation

dry distillation

Carbonization process is the conversion of

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Coal into coal gas

Coal into wood

Wood into coal

Wood into coal tar

In which of the following groups, oxygen is attached on both sides with carbon atoms?

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Ketone

Ether

Aldehyde

Ester

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Chemistry 10th Class English Medium Unit 11 Online Test MCQs With Answers

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