Question # 1

The functional group- COOH is found in

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Carboxylic acid

aldehydes

alcohals

easter

Who put forward '' the vital force theory''?

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Kolbe

Wohler

Berzellius

Jabir - Bin - Hayan

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

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Carbonization

Catenation

Hydrogenation

Cracking

Pitch is black residue of.

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Coke

Coal tar

Coal

Coal gas

Which one of the following does not contain starch

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Sugar cane

Maize

Barley

Potatoes

Hydrogen atoms preset in pentane are.

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10

12

14

16

Open chain compounds are also called:

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aliphatic compounds

alicyclic compounds

aromatic compounds

hydrocarbons

Pitch is black residue of

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Coke

Coal-tar

Coal

Coal gas

Carbonization process is the conversion of

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Coal into coal gas

Coal into wood

Wood into coal

Wood into coal tar

The functional group -COOH is found in.

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Aldehydes

Esters

Carboxylic acids

alcohols

Number of discovered element till today are.

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140

118

90

16

Percentage of methane present in natural gas is.

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75%

80%

85%

90%

Which one of the following is a synthetic fiber:

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cotton

wool

nylon

silk

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