Which of the following is the correct order of acidic strength of the following compounds?
Which of the following is the correct order of acidic strength of the following compounds?
(i) $>$ (ii) $>$ (iii)
(ii) $>$ (iii) $>$ (i)
(i) $>$ (iii) $>$ (ii)
(iii) $>$ (ii) $>$ (i)
Solution
More the -I-effect, more will be the acidic character.
$-\mathrm{NO}_2$ group has more $-I$-effect than $-\mathrm{OCH}_3$ group which also has $+R$-effect.
Thus, the order of acidic strength is
