Given the electronegativity values of H (2.1),N (3.0),and O (3.5),which of the following molecules have polar bonds?

Question

Quizplus · Accepted Answer

A polar bond is formed when there is a difference in electronegativity between the atoms participating in the bond. In all three molecules (water, ammonia, and laughing gas), there are atoms with significantly different electronegativity values. In water, the oxygen is much more electronegative than the hydrogen atoms, creating a polar O-H bond. In ammonia, the nitrogen is more electronegative than the hydrogen atoms, resulting in polar N-H bonds. Similarly, in laughing gas, the nitrogen is more electronegative than the oxygen, causing polar N-O bonds. Therefore, all three molecules have polar bonds.

Given the Electronegativity Values of H (2