Among P, Q, R, S the aromatic compound is

1. $\stackrel{\mathrm{A}\mathrm{l}\mathrm{C}{\mathrm{l}}_3}{\to }\mathrm{P}$
2. $\stackrel{\mathrm{N}\mathrm{a}\mathrm{H}}{\to }\mathrm{Q}$
3. $\stackrel{{\text{AlCl}}_{\text{3}}}{\to }$
4. $\stackrel{\mathrm{H}\mathrm{C}\mathrm{l}}{\to }\mathrm{D}$

Solution

${\text{AlCl}}_{\text{3}}$helps in formation of carbocation. ,

Asked in: JEE-TOPICTESTS-CHEMISTRY

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