Question Detail

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

Which of the following reagents is used to test for terminal alkynes by forming a white precipitate?
Options
A Bromine water
B KMnO4 solution
C Ammoniacal silver nitrate (AgNO3/NH3)
Correct Answer
D Sodium metal
Correct Answer

Option C is the correct answer.

Detailed Explanation

Terminal alkynes form insoluble silver acetylides (white precipitate) with ammoniacal AgNO3, useful as a test to distinguish terminal from internal alkynes.

Hint

Silver acetylide precipitate is characteristic.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 191 of 1999
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