First slide

Alkynes

Question

The most suitable reagent for the following conversion, is

Easy

A

${Hg}^{2 +} / H^{+}, H_{2} O$
B

$Na/liquid {NH}_{3}$
C

$H_{2}, Pd / C, quinoline$
D

$Zn / HCl$

Solution

Alkynes on controlled hydrogenation gives alkenes. $Pd - {BaSO}_{4} / Quinoline$ is called Lindlars catalyst.In presence of Lindlars catalyst the product obtained is cis alkene.

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