Which of the following is the most stable conformation of bromocyclohexane?
A)I
B)II
C)III
D)IV

Question

Which of the following is the most stable conformation of bromocyclohexane? 
A)I 
B)II 
C)III 
D)IV

Quizplus · Accepted Answer

In the chair conformation of cyclohexane, axial substituents experience steric strain due to the eclipsed interaction with the hydrogens on the neighboring axial positions. The most stable conformation is the one that has the least amount of steric strain. In this case, the bromine atom is positioned equatorially in conformation III, which minimizes steric hindrance and leads to the most stable conformation. The other conformations have the bromine atom in an axial position, which causes greater steric strain and increases the energy of the molecule.

Which of the Following Is the Most Stable Conformation of Bromocyclohexane