Question

Which of the following has zero dipole moment?

• A. 1,1-dichloromethane
• B. cis-1,2-dichloroethene
• C. trans-1,2-dichloroethene
• D. 1-chloroethane

Hint:

Symmetrical molecules often have zero dipole moment.

Answer 1

The Correct Option is C

In trans-1,2-dichloroethene, bond dipoles cancel each other due to symmetry, resulting in zero net dipole moment.