Question # 1

The carbon contents in lignite is.

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80%

50%

60%

70%

In laboratory urea was prepared by

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Wohler

Rutherford

Berzelius

Dalton

Functional group of Alcohols is

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-COOH

-C=0

C-O-C

-OH

Coal is the mixture of

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Hydrogen

Methane

Carbon monoxide

All

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

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Carbonization

Destructive distillation

Fractional distillation

All

The % age of carbon is coal is

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40-60

50-70

40-80

40-90

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

Formula of Decane is.

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C₁₀H₂₀

C₁₀H₂₂

C₁₀ H₄

C₁₀H₁₆

Petroleum is refined by:

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destructive distillation

fractional distillation

simple distillation

dry distillation

Which one of the following compounds is an aldehyde?

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CH₃-CH₂-OH

CH₃-COOH

CH₃CHO

CH₃COCH₃

The example of heterocyclic compound is.

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Benzene

Hexane

Cyclohexane

Pyridine

Wood contain the amount of carbon.

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70%

80%

60%

40%

The % age of carbon in peat is :

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60%

70%

80%

90%

The % age of carbon in coke is

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60

70

90

98

Molecular formula of butane is

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C₄H₈

C₄H₁₀

C₄H₁₂

C₄H₆

The ability of carbon atom to form chain is called.

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Isomerism

Catenation

resonance

Condensation

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

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