Question

Which of the following molecules have zero dipole moment?

(I) gauche conformation of 1, 2-dibromoethane.

(II) anti conformation of 1, 2-dibromoethane.

(III) trans-1, 4-dibromocyclohexane

(IV) cis-1, 4-dibromocylohexane

(V) tetrabromomethane.

(VI) 1, 1-dibromocyclohexane

• A. I and II
• B. II, III and V
• C. II and V
• D. I, IV and VI

Answer 1

Answer: (B)

(II) anti conformation of 1, 2-dibromoethane, $\mu =0$



(III) trans-1, 4-dibromocyclohexane, $\mu =0$



(V) tetrabromomethane, $\mu =0$