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STD 12 -8.1. Aldehydes and ketones — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 12 -8.1. Aldehydes and ketones4 Marks
MCQ
Catalyst used in Rosenmund reduction is
  • ✓
    $Pd /$ $BaS{O_4}$
  • B
    $Zn-Hg$ $couple$
  • C
    $LiAl{H_4}$
  • D
    $Ni/{H_2}$
✓

Answer

Correct option: A.
$Pd /$ $BaS{O_4}$
a
The Rosenmund reaction is a hydrogenation process where molecular hydrogen reacts with acyl chloride in the presence of palladium or barium sulfate catalyst.

Barium sulfate reduces the activity of palladium due to its low surface area, thereby preventing over reduction.

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