Question

The correct order of acid character of the following compounds is :

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• A. $II>III>IV>I$
• B. $I>II>III>IV$
• C. $III>II>I>IV$
• D. $IV>III>II>I$

Answer 1

The correct option is A $II>III>IV>I$

Carboxylic acids are more acidic than phenols .
$-I$ and $-R$ effect increase the acidic strength where as $+I$ and $+R$ effect decreases the acidic strength of carboxylic acids.

Acidic strength,
Hence, option $\left(b\right)$ is correct.