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Carboxylic acids do not give the charact...

Carboxylic acids do not give the characteristic reactions of carbonyl group. Explain.

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Carboxylic acids do not the characteristic of carbonyl group as given by aldehydes and ketons . In carboxylic acids the carboxyl group is involved in resonance , as follows :

therefore ,it is not a free , but no reasonance is possible in aldehydes and ketons , they give give the characteristic reactions of the group .
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Carboxylic acids donot give the characteristic reactions of carbonyl group. Explain.

Carboxylic acids do not give the characterstic properties of:

Statement 1: Carboxylic acids do not give characterstic reactions of carbonyl group. Statement 2 : Carboxylic acids exist as cyclic dimers in solid, liquid and even in vapour state

Assertion : Carbxoylic acids donot give characteristic reactions of carbonyl group. Reason : The carbonyl group is sterically hindered in carboxylic acid.