Question

What chair conformation is most stable?

Answer 1

The conformation in which bulky substituents are equatorial.

Explanation:

The most stable conformation for `C_6H_11R`, i.e. alkylcyclohexane, is the one where the alkyl group is EQUATORIAL with respect to the plane of the ring. I urge you to get a set of models and practise the equatorial to axial exchange, and also how to represent the transition on the printed page unambiguously .