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Question

It is dangerous to burn coal in a closed room. The gas 'X'produced can kill persons sleeping in that room. The gas 'X' produced is_.

A
Carbon monoxide
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B
Carbon dioxide
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C
Sulphur dioxide
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D
Nitrogen
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Solution

The correct option is A Carbon monoxide
Incomplete combustion of fuel like wood, coal, petroleum gives carbon monoxide gas. It is a very poisonous gas.
It is dangerous to burn coal in a closed room. The carbon monoxide gas produced can kill persons sleeping in that room.

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