Question Detail

CHM 102 Alkynes: Structure, Bonding, and Nomenclature Objective Question
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Question

What is the product of the reaction of 2-butyne with H2/Lindlar's catalyst?
Options
A Butane
B cis-2-Butene
Correct Answer
C trans-2-Butene
D 1-Butene
Correct Answer

Option B is the correct answer.

Detailed Explanation

Lindlar's catalyst hydrogenates alkynes to cis-alkenes via syn hydrogenation. 2-Butyne gives cis-2-butene.

Hint

Syn addition gives the cis isomer.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 220 of 1999
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