Rank the following covalent bonds in order of decreasing polarity: C-H,N-H,O-H,and F-H.
A) F-H O-H N-H C-H
B) O-H F-H N-H C-H
C) N-H F-H O-H C-H
D) C-H N-H O-H F-H
E) C-H F-H O-H N-H

Question

Rank the following covalent bonds in order of decreasing polarity: C-H,N-H,O-H,and F-H.
A) F-H > O-H > N-H > C-H
B) O-H > F-H > N-H > C-H
C) N-H > F-H > O-H > C-H
D) C-H > N-H > O-H > F-H
E) C-H > F-H > O-H > N-H

Quizplus · Accepted Answer

Fluorine is the most electronegative element, so the F-H bond is the most polar. Oxygen is the next most electronegative, followed by nitrogen and carbon. Therefore, the order of decreasing polarity is F-H > O-H > N-H > C-H.

Rank the Following Covalent Bonds in Order of Decreasing Polarity