Please explain in detail.​

Dear Student,

The dipole moment in ketone group is always higher as its directing towards carbonyl oxygen atom, for the given option of ketone molecules highest dipole moment is,

A)  2.70 D

B)  3.58 D

C) 1.76 D

D) 2.67 D

The answer is Option (B), double pi bonds increases the dipole moments acting towards carbonyl carbon position.

Regards.