The correct order of reactivity in electrophilic substitutio... | Chemistry | SolveeIt

Question

The correct order of reactivity in electrophilic substitution reaction of the following compounds is : no2

$B > C > A > D$

$D > C > B > A$

$A > B > C > D$

$B > A > C > D$

Answer

$B > A > C > D$

Explanation

Solution

The effect of substituents on electrophilic substitution reactions is as follows:

$-\text{CH}_3$ shows $+M$ and $+I$ .
$-\text{Cl}$ shows $+M$ and $-I$ but inductive effect dominates.
$-\text{NO}_2$ shows $-M$ and $-I$ .

Electrophilic substitution order is based on $\alpha + M$ and $+I$ , with the highest reactivity for the methyl group. Hence, order is $B > A > C > D$ .

Chemistry Question on Nucleophilic and electrophilic substitution reactions (both aromatic and aliphatic)

Solution