JEE MAIN - Chemistry (2024 - 31st January Evening Shift - No. 9)
The correct order of reactivity in electrophilic substitution reaction of the following compounds is :
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B > C > A > D
B > A > C > D
D > C > B > A
A > B > C > D
Explanation
$$-\mathrm{CH}_3$$ shows $$+\mathrm{M}$$ and $$+\mathrm{I}$$.
$$-\mathrm{Cl}$$ shows $$+\mathrm{M}$$ and $$-\mathrm{I}$$ but inductive effect dominates.
$$-\mathrm{NO}_2$$ shows $$-\mathrm{M}$$ and $$-\mathrm{I}$$.
Electrophilic substitution $$\alpha \frac{1}{-\mathrm{M} \text { and }-\mathrm{I}}$$
$$\alpha+\mathrm{M} \text { and }+\mathrm{I}$$
Hence, order is $$\mathrm{B}>\mathrm{A}>\mathrm{C}>\mathrm{D}$$.
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