List two test for experimentally distinguish between an alcohol and a carboxylic acid
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Answer:
1. Reaction with sodium hydrogen carbonate – Alcohol has no reaction with sodium hydrogen carbonate (NaHCO
3
) but in the case of carboxylic acid, it reacts with NaHCO
3
which gives CH
3
COONa, CO
2
and H
2
O. The reaction is evident as the carbon dioxide will turn the lime water milky.
2. On adding Na metal to alcohol, H
2
gas is released which is evident in the form of bubbles. Carboxylic acid does not show such reaction.
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