Which of the following molecules is/are polar
- $\ce{B3N3H6}$
- Hydroquinone
- Benzene
- $\ce{IF7}$
Molecules (4),(3) are non-polar. Molecule (4) has pentagonal bipyramidal structure and the dipole moments of \ce{I - F}$ Bonds cancel out.
I thought the answer was (1) (inorganic benzene). But the answer given is (2). How is hydroquinone or para-hydroxyphenol polar?