Question Detail

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

Question

Why is the C-H bond of a terminal alkyne more acidic than the C-H bond of an alkane or alkene?
Options
A The sp hybridized carbon is more electronegative (50% s-character)
B The triple bond is electron-withdrawing
C The conjugate base is stabilized by the sp hybridized carbon
D All of the above
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

sp carbons have 50% s-character, making them more electronegative, and the resulting acetylide ion is stabilized by the sp hybrid orbital, increasing acidity.

Hint

Higher s-character means more electronegative.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 189 of 1999
Previous Course Details Next