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Prateek took a piece of burning charcoal...

Prateek took a piece of burning charcoal and collected the gas evolved in a test tube.
(a) How will he find the nature of the gas?
(b) Write down word equations of all the reactions taking place in this process?

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Charcoal reacts with oxygen to form carbon dioxide gas.

Carbon dioxide reacts with water to form carbonic acid, which turns blue litmus paper red.
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