Question

Dipole moment of which ketone is maximum?

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

In option B:


Ionic structure $II$ in option B is a stable structure because it is aromatic.
In all other options, the ionic structures are not aromatic because atleast one carbon is $s{p}^3$ hybridised.
So, the ketone in option B has the most dipole moment.