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The correct statement (s) about the following reaction sequence is (are)

$Cumene (C_{6}H_{12})$ $\xrightarrow[{(i)O_{2}}]{(ii)H_{2}O}$ P $\underrightarrow {CHCl_{3}/NaOH}$ Q(major) +R (minor),

Q $\xrightarrow[\text{NaOH}]{{PhCH_{2}Br}}$ S

A) R is stream volatile

B) Q gives dark violet colouration with 1% aqueous

$FeCl_{3}$ solution

C) S gives yellow precipitate with 2,4-dinitrophenylhydrazine

D) S gives dark violet colouration with 1% aqueous

$FeCl_{3}$ solution.

Option B,C

(a) R is not steam volatile , but Q is steam volatile thus, incorrect.

(b) Q has enolic group thus, gives violet colour with 1% aqueous $FeCl_{3}$ solution thus, correct.

(d) S does not give colour with $FeCl_{3}$ thus, incorrect.

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