How to find the nature of gas evolved during burning charcoal?
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(a) Add a few drops of water in the test tube containing gas. ...
(b) Charcoal reacts with oxygen to form carbon dioxide gas.
C + O2 → CO2 ↑
Carbon from charcoal Oxygen Carbon dioxide.
Carbon dioxide reacts with water to form carbonic acid, which turns blue litmus paper red.
CO2 + H2O → H2CO3
Carbon dioxide Water.
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