Is paradichlorobenzene-PDCB-polar or non polar

Answer 1

Yes, it´s nonpolar although it contains two polarizing chlorine atoms;

but because of the chlorine atoms standing on the opposite (para-)direction in the benzene molecule the electric charge shifts neutralizes almost completely

Answer 2

Paradichlorobenzene is nonpolar because it contains a symmetrical arrangement of atoms (two chlorine atoms opposite each other on a benzene ring), leading to a balanced distribution of electron density. This results in no significant separation of positive and negative charges, making it nonpolar.