Two isomeric compounds I and II are heated wi | vedclass

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(A) In reaction $(I)$,the $OH$ group of the $CH_2OH$ side chain is protonated by $HBr$ to form a good leaving group $(H_2O^+)$. This leaves as water t

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(A) In reaction $(I)$,the $OH$ group of the $CH_2OH$ side chain is protonated by $HBr$ to form a good leaving group $(H_2O^+)$. This leaves as water to form a resonance-stabilized benzylic carbocation,which is then attacked by $Br^-$ to yield $3-(bromomethyl)phenol$.In reaction $(II)$,the ether oxygen is protonated by $HBr$. The $C-O$ bond cleavage occurs such that the methyl group is released as $CH_3Br$ because the $C-O$ bond involving the phenyl ring has partial double bond character due to resonance,making it stronger and harder to break. Thus,the reaction yields benzene-$1,3-diol$ (resorcinol) and $CH_3Br$.

Two isomeric compounds $I$ and $II$ are heated with $HBr$. The products obtained are

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