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Question: Answered & Verified by Expert
The reagent ' \( X \) ' used for the following reaction is
ChemistryHydrocarbonsKCETKCET 2018
Options:
  • A Ni
  • B \( \mathrm{Pd} / \mathrm{C} \)
  • C \( \mathrm{LiAlH}_{4} \)
  • D \( \mathrm{Na} / \mathrm{Liquid} \mathrm{NH}_{3} \)
Solution:
2194 Upvotes Verified Answer
The correct answer is: \( \mathrm{Pd} / \mathrm{C} \)
The reaction is,

Partially deactivated palladised charcoal (Pd/C) with \( \mathrm{H}_{2} \) is known as Lindlar's catalyst. Alkenes thus obtained have cis-
configuration.

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