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Acidity of Carboxylic Acids

Question

The correct order of strengths of the carboxylic acids :

$I I > I > I I I$
$I > I I > I I I$
$I I > I I I > I$
$I I I > I I > I$

A

I > I I > I I I

B

I I I > I I > I

C

I I > I > I I I

D

I I > I I I > I

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Solution

Verified by Toppr

Presence of electron withdrawing group increases the acidic strength of carboxylic acid.

So in option (II) and (III) the oxygen (electron withdrawing) makes it more acidic, but presence of oxygen in (II) is near to carboxylic group which makes it more acidic than (III) as it contains oxygen a bit away from the carboxylic group.

The correct order of acidity is $I I > I I I > I$ .

Hence, option $D$ is correct.

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