Q.

Which of the following statements is not correct?

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a

The resonate stabilization of formate anion makes formic acid stronger acid than acetic acid.

b

Inductive effect is dependent on the distance between the two centres.

c

Electron-withdrawing group attached to the carboxyl group decreases the stability of the carboxylic acid.

d

+I group attached to carboxylic group weakens the acidity of carboxylic acid.

answer is A.

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Detailed Solution

(a) Electron-withdrawing group stabilizes the carboxylate anion, hence increases the acidity of carboxylic acid.

 (b) +J group is electron-releasing group and it destabilizes the carboxylate anion, hence decreases the acidity of carboxylic acid. 

( c) Inductive effect is distance dependent.

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