Question
Chemistry Question on Hydrocarbons
Which one of the following conformation of cyclohexane is chiral ?
A
Boat
B
Twist boat
C
Chair
D
None of these
Answer
Twist boat
Explanation
Solution
Twist-boat conformation of cyclohexane is chiral. The twist-boat conformation i.e. 
has minimised transannular interaction between "flagpole" hydrogens and at the same time torsional strain between the pair of side carbons of the initial boat are also relieved. The symmetry of twist-boat is reduced and the molecule is chiral