Which of the following molecules is polar? A)SF₆ B)CCl₄ C)BF₃ D)NO₂ E)CO₂

Question

Quizplus · Accepted Answer

In order for a molecule to be polar it must have an uneven distribution of charge, resulting in a positive and negative end. This occurs when the molecule has a difference in electronegativity between its atoms. NOS has a polar covalent bond between the N and O atoms, and the O atom has a higher electronegativity, resulting in a slight negative charge on that end of the molecule. Therefore, NOS is polar. The other molecules listed do not have polar covalent bonds and therefore are not polar.

Which of the Following Molecules Is Polar