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JIPMER 2017
Exam
JIPMER
Year
2017
Subject
Chemistry
Chapter
Hydrocarbons

JIPMER 2017 · Chemistry · Hydrocarbons

Clemmensen reaction of ketone is carried out in the presence of

Clemmensen reaction of ketone is carried out in the presence of

Options

  1. ALiAlH4\mathrm{LiAlH}_4
  2. BZn−Hg\mathrm{Zn}-\mathrm{Hg} with HCl
  3. Cglycol with KOH
  4. DH2\mathrm{H}_2 with Pt as catalyst

Correct answer

B. Zn−Hg\mathrm{Zn}-\mathrm{Hg} with HCl

Step-by-step solution

Zn−Hg\mathrm{Zn}-\mathrm{Hg} with HCl reduce ketone to respective alkane, i.e. C=O\mathrm{C}=\mathrm{O} of ketone reduce to >CH2\gt\mathrm{CH}_2 group. The reaction is called Clemmensen reduction.
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