Question Detail

CHM 102 Electronic Theory in Organic Chemistry Objective Question
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Question

Which of the following correctly orders C-C bond lengths from longest to shortest?
Options
A C≡C > C=C > C-C
B C-C > C=C > C≡C
Correct Answer
C C=C > C-C > C≡C
D C≡C > C-C > C=C
Correct Answer

Option B is the correct answer.

Detailed Explanation

Bond length decreases with increasing bond order: single bond (C-C) is longest (~1.54 Å), double bond (C=C) is intermediate (~1.34 Å), triple bond (C≡C) is shortest (~1.20 Å).

Hint

More bonds = shorter bond.

Question Info

Course: CHM 102
Topic: Electronic Theory in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 698 of 1999
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