Question Detail

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

What is the product when an internal alkyne is reduced with sodium in liquid ammonia (Na/NH3)?
Options
A cis-Alkene
B trans-Alkene
Correct Answer
C Alkane
D No reaction
Correct Answer

Option B is the correct answer.

Detailed Explanation

Sodium in liquid ammonia reduces alkynes to trans-alkenes via a radical anion mechanism (anti addition).

Hint

Dissolving metal reduction gives the more stable trans isomer.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 200 of 1999
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