Question Detail

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

What is the boiling point trend of alkynes compared to alkanes of similar molecular weight?
Options
A Alkynes have lower boiling points
B Alkynes have higher boiling points
Correct Answer
C They are similar
D No trend
Correct Answer

Option B is the correct answer.

Detailed Explanation

Alkynes have slightly higher boiling points than alkanes of similar molecular weight due to the linear shape allowing closer packing and stronger London forces, and also some polarity from the sp-hybridized carbons.

Hint

Linear molecules can pack more tightly.

Question Info

Course: CHM 102
Topic: Alkynes: Structure, Bonding, and Nomenclature
Type: Objective
Difficulty: Not specified
Question 218 of 1999
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