Question # 1

Natural gas is 85% methane, It is used to make the follwing except.

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Carbon black

Ethane

Propane

Both b and c

General formula of alcohols is:

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RCHO

ROH

O= R - C -OH

O = R - C- R

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

Which one of the following is a synthetic fibre?

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Cotton

Wool

nylon

silk

Organic compounds contain:

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ionic bond

Covalent bond

Metallic bond

Co-ordinate covalent

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

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Fractional distillation

Sublimation

Roasting

Destructive distillation

The % age of carbon is lignite is

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60

70

80

90

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

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Carbonization

Destructive distillation

Fractional distillation

All

What one of the following does not contain protein?

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Pulses

Potatoes

Beans

Eggs

Identify which one of the following compounds is a ketron?

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(CH₃)₂ CHOH

(CH₃)₂CHCl

(CH₃)₂CO

(CH₃)₂CHCl

Functional group of Alcohols is

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-COOH

-C=0

C-O-C

-OH

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