Question # 1

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

The formula which represents the actual number of atoms in one molecule of organic compound is called.

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Molecular formula

Structural formula

Condensed formula

Dot and cross formula

Conversion of dead plants into coal by the action of bacteria and heat is called.

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Carbonization

Catenation

Hydrogenation

Cracking

Which of the following statement s is not true about fossil fuels?

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they all contain carbon

They are renewable

they produce pollutants when burnt

they cause acid rain

The ability of carbon atoms to form chains is called.

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Isomerism

Catenation

Resonance

Condensation

The functional group- COOH is found in

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Carboxylic acid

aldehydes

alcohals

easter

Petroleum is refined by

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Destructive distillation

Fractional distillation

Simple distillations

Dry distillation

The % age of carbon in coke is

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60

70

90

98

Coal having 90% carbon contents is called.

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Peat

Lignite

anthracite

bituminous

Which is the main component of natrual gas.

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Methane

Ethane

Propane

Charcoal

The carbon contents in lignite is.

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80%

50%

60%

70%

Conversion of wood into coal is called.

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Carbonization

Destructive distillation

Fractional distillation

All

Main component of Natrual gas.

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CH₃

CH₄

C₂H₆

C₂H₂

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

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