Identify the product of the reaction of an alkyne with hydrogen and Lindlar's catalyst.
A) cis alkene
B) trans alkene
C) diene
D) alkyne
E) alkane

Question

Quizplus · Accepted Answer

The reaction of an alkyne with hydrogen and Lindlar's catalyst results in the selective reduction of the alkyne to a cis alkene. Lindlar's catalyst is a palladium catalyst that is poisoned with lead, which prevents further reduction of the alkene to an alkane. The hydrogenation reaction is carried out under mild conditions, resulting in the formation of the cis alkene.

Identify the Product of the Reaction of an Alkyne with Hydrogen