Benzene is treated with CH3COCl and anhydrous AlCl3 to give A, and A is heated with Zn-Hg/conc. HCl to give B. B is

JEE Main levelSingle correct optionDifficulty 2 of 3si112

Benzene is treated with $CH X_{3} COCl$ and anhydrous $AlCl X_{3}$ to give A, and A is heated with $Zn - Hg / conc \cdot HCl$ to give B. B is

Friedel-Crafts acylation gives acetophenone,

C X_{6} H X_{5} COCH X_{3}

(A). Clemmensen reduction converts

C = O

CH X_{2}

and gives

C X_{6} H X_{5} CH X_{2} CH X_{3}

(ethylbenzene). A secondary alcohol would result from

NaBH X_{4}

, not Clemmensen.