Question # 1

General formula of Alkyl radical is..

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C₆H_2n-2

C_nH_2n+2

C₁₁H_2n-1

C_nH_2n-2

Which one of the following is not a fossil fuel?

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Coal

Natural gas

Bio gas

Petroleum

Carbon content in coke is.

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80%

98%

70%

88%

Wood contain the amount of carbon.

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70%

80%

60%

40%

The % age of carbon is bituminous is

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60

70

80

90

Which is the main component of natrual gas.

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Methane

Ethane

Propane

Charcoal

Chemical formula for urea is:

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NH4CNO

NH4CH

NH2CONH2

NH4CI

The strong heating of coal in retoris in the absence of air is called.

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Fractional distillation

Sublimation

Roasting

Destructive distillation

Pitch is black residue of

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Coke

Coal-tar

Coal

Coal gas

The strone heating of coal in retorts in the absence of air is called.

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Fractional distillation

sublimation

Roasting

Destructive distillation

Formula of Methyl alcohol

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CH₅-OH

CH₃-CH₂-OH

All of them

None of these

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

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

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10th Class Chemistry Chapter 11 Organic Chemistry English Medium KPK Boards Online Mcqs MCQs With Answers

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