Question Detail

CHM 102 Introductory Reaction Mechanism and Kinetics Objective Question
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Question

In writing resonance structures, which of the following can be shifted?
Options
A Sigma bond electrons only
B Pi electrons or unshared valence electrons only
Correct Answer
C All electrons including core electrons
D Atomic nuclei
Correct Answer

Option B is the correct answer.

Detailed Explanation

Only pi electrons and lone pair electrons (unshared valence electrons) can be delocalized in resonance structures. Sigma bonds and atomic positions remain fixed.

Hint

Electrons in pi bonds or lone pairs.

Question Info

Course: CHM 102
Topic: Introductory Reaction Mechanism and Kinetics
Type: Objective
Difficulty: Not specified
Question 464 of 1999
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