What of the following shows the bonds in order of decreasing polarity?
A) N-Cl, P-Cl, As-Cl
B) As-Cl, P-Cl, N-Cl
C) P-Cl, As-Cl, N-Cl
D) P-Cl, N-Cl, As-Cl
E) As-Cl, N-Cl, P-Cl

Question

Quizplus · Accepted Answer

Polarity in bonds is determined by the difference in electronegativity between the two atoms forming the bond. Nitrogen (N) is more electronegative than phosphorus (P), which in turn is more electronegative than arsenic (As). Therefore, the N-Cl bond, having the largest difference in electronegativity, is the most polar, followed by P-Cl, and then As-Cl, making option B correct.

What of the Following Shows the Bonds in Order of Decreasing