Question

the most stable conformation of n butane is
A) skew beat
B) eclipsed
C) gauche
D) staggered or anti ​

Answer 1

Explanation:

The most stable conformation of butane is the one in which the two terminal methyl groups are the farthest removed from each other, i.e. the anti conformation. Somewhat less favorable is the gauche conformation in which the methyl groups assume a dihedral angle of 60°.