Arrange the following molecules in order of increasing bond polarity (highest bond polarity at the bottom):

a. NF3
b. NCl3
c. Nbr3
d. CF4


Answer :

NF3– 0.94– third
NCl3–0.12– second
NBr3–0.08– first
CF4–1.43– fourth

NBr3—NCl3—NF3—CF4
Lowest. Highest