Question Detail

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

Which statement about the carbon-carbon double bond length is correct?
Options
A C=C is shorter than C-C
Correct Answer
B C=C is longer than C-C
C C=C and C-C are the same length
D Length varies with substitution
Correct Answer

Option A is the correct answer.

Detailed Explanation

The C=C double bond is approximately 1.34 Å, shorter than a C-C single bond (1.54 Å) due to the additional π bond pulling the carbons closer.

Hint

Double bonds are stronger and shorter.

Question Info

Course: CHM 102
Topic: Alkenes: Structure, Bonding, and Geometrical Isomerism
Type: Objective
Difficulty: Not specified
Question 162 of 1999
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