JEE Main 2022 · 29 Jun · Shift 2 · Chemistry Q74

← JEE Main 2022 · 29 Jun · Shift 2

ChemistrySingle correct+4 / -1Question 74 of 90

$\mathrm{C_6H_6+CH_3CH_2CH_2Cl\xrightarrow{Anhydrous,\ AlCl_3}\ 'A'\ (Major\ Product)}$

The stable carbocation formed in the above reaction is

\mathrm{CH_3CH_2\overset{\oplus}{C}H_2}

\mathrm{CH_3\overset{\oplus}{C}H_2}

\mathrm{CH_3{-}\overset{\oplus}{C}H{-}CH_3}

\mathrm{C_6H_5\overset{\oplus}{C}HCH_2CH_3}

Answer and worked solution

Official answer: C

Rearrangement. The primary propyl cation shifts a hydride to give the more stable isopropyl cation $\mathrm{CH_3\overset{+}{C}HCH_3}$ (product cumene).

(C)

Topics:Aromatic hydrocarbons and electrophilic substitution Reactive intermediates

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JEE Main 2022 · 29 Jun · Shift 2, Chemistry question 74