Identify the major products A and B for the r | vedclass

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(B) $1$. The reaction of benzene with isopropyl chloride in the presence of $AlCl_3$ (Friedel-Crafts alkylation) gives cumene (isopropylbenzene). $2$.

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$p$-benzoquinone and $p$-bromophenol

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(B) $1$. The reaction of benzene with isopropyl chloride in the presence of $AlCl_3$ (Friedel-Crafts alkylation) gives cumene (isopropylbenzene). $2$. Oxidation of cumene with $O_2$ followed by treatment with $H^+/H_2O$ yields phenol $(P)$ and acetone. $3$. Phenol $(P)$ reacts with $Na_2Cr_2O_7/H_2SO_4$ (strong oxidizing agent) to form $p$-benzoquinone $(A)$. $4$. Phenol $(P)$ reacts with $Br_2$ in $CS_2$ (a non-polar solvent) to give $p$-bromophenol $(B)$ as the major product due to the low polarity of the medium,which prevents further bromination.

Identify the major products $A$ and $B$ for the reaction sequence given below.

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