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Arrange the following in increasing order of their acidic strength
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Verified Answer
The correct answer is:
$\mathrm{A} < \mathrm{B} < \mathrm{C} < \mathrm{D}$
More the stability of conjugate bases, more is the acidity of the acid. $\mathrm{Ph}, \mathrm{Br}, \mathrm{NO}_2$ exerts the $-\mathrm{I}$ effect to the $\mathrm{C}_{\propto}$ which, further, stabilizes the carboxylate ion.
Order of $(-\mathrm{I})$ effect of the substituents :
$\mathrm{H} < \mathrm{Ph} < \mathrm{Br} < \mathrm{NO}_2$
Order of $(-\mathrm{I})$ effect of the substituents :
$\mathrm{H} < \mathrm{Ph} < \mathrm{Br} < \mathrm{NO}_2$
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