Question Detail

CHM 102 Alkenes: Structure, Bonding, and Geometrical Isomerism Objective Question
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Question

What is the driving force for addition reactions of alkenes?
Options
A Formation of a weaker π bond
B Formation of two stronger σ bonds
Correct Answer
C Increased ring strain
D Decreased entropy
Correct Answer

Option B is the correct answer.

Detailed Explanation

The π bond (≈60 kcal/mol) is weaker than the two σ bonds formed (≈80-100 kcal/mol each), making addition exothermic and favorable.

Hint

Two σ bonds replace one π bond.

Question Info

Course: CHM 102
Topic: Alkenes: Structure, Bonding, and Geometrical Isomerism
Type: Objective
Difficulty: Not specified
Question 177 of 1999
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