Question

The dipole moment is the highest for

• A. trans-2-butene
• B. 1 ,3-dimethylbenzene
• C. acetophenone
• D. ethanol

Answer 1

Answer: (C)

acetophenone

Answer 2

Acetophenone has maximum dipole moment ($3$ Debye) as it has strong electron withdrawing group. Trans-$2$-butene has zero dipole moment.