Question

The correct order of the stability of different conformations of cyclohexane is:
(A). chair
(B). boat
(C). twist boat
(D). half chair
Choose the correct answer from the options given below:

• (A) > (B) > (C) > (D)
• (A) > (C) > (B) > (D)
• (A) > (D) > (C) > (B)
• (D) > (C) > (B) > (A)

Hint:

The chair conformation is the most stable because it minimizes both steric and torsional strain, while the half-chair has the highest strain due to poor bond angles and steric clashes.

Answer 1

The Correct Option is B

The correct order of stability for cyclohexane conformations is as follows:

• The chair conformation (A) is the most stable because it minimizes both steric and torsional strain.
• The twist boat conformation (C) is more stable than the boat conformation because it reduces some of the steric strain.
• The boat conformation (B) is less stable due to its "flagpole" interactions, which cause steric strain.
• The half-chair conformation (D) is the least stable, as it suffers from the highest steric and torsional strain.