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NEETChemistryHydrocarbons

What is the primary difference between alkynes reduced with Lindlar's catalyst and alkynes reduced with sodium in liquid ammonia?

Options

  1. ALindlar's catalyst yields cis alkenes, while sodium in liquid ammonia yields trans alkenes.
  2. BLindlar's catalyst yields trans alkenes, while sodium in liquid ammonia yields cis alkenes.
  3. CLindlar's catalyst yields alkanes, while sodium in liquid ammonia yields alkenes.
  4. DLindlar's catalyst yields alkenes, while sodium in liquid ammonia yields alkynes.

Correct answer

A. Lindlar's catalyst yields cis alkenes, while sodium in liquid ammonia yields trans alkenes.

Step-by-step solution

The primary difference is the geometry of the alkenes produced; Lindlar's catalyst produces cis alkenes, while sodium in liquid ammonia produces trans alkenes.

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