Q66 / 180 · JIPMER 2017 · Chemistry

Clemmensen reaction of ketone is carried out in the presence of

  • A
    $\mathrm{LiAlH}_4$
  • Correct answer
    B
    $\mathrm{Zn}-\mathrm{Hg}$ with HCl
  • C
    glycol with KOH
  • D
    $\mathrm{H}_2$ with Pt as catalyst

Solution

$\mathrm{Zn}-\mathrm{Hg}$ with HCl reduce ketone to respective alkane, i.e. $\mathrm{C}=\mathrm{O}$ of ketone reduce to $\gt\mathrm{CH}_2$ group. The reaction is called Clemmensen reduction.

Hence, the correct answer is option: 'B'.

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