Identify A in the following chemical reaction | vedclass

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(B) The reaction proceeds in three steps:$1$. Cross-Cannizzaro reaction: $p$-methoxybenzaldehyde reacts with $HCHO$ in the presence of $NaOH$ to form

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$4-$hydroxybenzyl iodide

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(B) The reaction proceeds in three steps:$1$. Cross-Cannizzaro reaction: $p$-methoxybenzaldehyde reacts with $HCHO$ in the presence of $NaOH$ to form $p$-methoxybenzyl alcohol $(CH_3O-C_6H_4-CH_2OH)$ and sodium formate.$2$. Williamson ether synthesis: The alcohol $p$-methoxybenzyl alcohol reacts with $CH_3CH_2Br$ in the presence of $NaH$ to form $p$-methoxybenzyl ethyl ether $(CH_3O-C_6H_4-CH_2-O-CH_2CH_3)$.$3$. Cleavage with $HI$ and $\Delta$: The ether linkage and the methoxy group are cleaved by $HI$ upon heating. The methoxy group $(CH_3O-)$ is converted to $OH$ and $CH_3I$,and the benzyl ether $(R-CH_2-O-CH_2CH_3)$ is cleaved to form $p$-hydroxybenzyl iodide $(HO-C_6H_4-CH_2I)$ and ethanol (which further reacts with $HI$ to form $CH_3CH_2I$).Thus,the final product $A$ is $4$-hydroxybenzyl iodide.

Identify $A$ in the following chemical reaction:

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