Which of the following multiple-bond compounds is polar?

Question

Quizplus · Accepted Answer

A polar compound has an unequal distribution of electrons, resulting in a positive and negative end. In SOCl2, the S-O bonds are polar due to the difference in electronegativity between S and O. The Cl-S bond is also polar due to the difference in electronegativity between Cl and S. Thus, the molecule has a dipole moment and is polar. The other compounds either have no multiple bonds (A and D) or have multiple bonds but are symmetrical and nonpolar (B).

Which of the Following Multiple-Bond Compounds Is Polar