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Question

A:- Fibre burns with the smell like a burning hair.

B:- Fibre burns with the smell like a burning paper.

From the below-mentioned fibres identify which burns as A and B?


A

A:- Silk, Cotton

B:- Wool

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B

A:- Cotton

B:- Wool, Silk

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C

A:- Wool, Cotton

B:- Silk

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D

A:- Silk, Wool

B:- Cotton

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Solution

The correct option is D

A:- Silk, Wool

B:- Cotton


Silk and wool both smell like burning hair when they are burnt because both are made from animal proteins and hair also contains animal proteins.

Cotton fabric does not shrink or melt on burning. It smells like a burning paper because both cotton fabric and paper are obtained from plants.


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