The bond angle of `NF_(3)` `(102.3^(@))` is less than that of `NH_(3)` `(107.2^(@))` because-

Options

A. F is larger in size compared to H
B. N is larger in size compared to F
C. opposite polarity of nitrogen in the two molecules
D. smaller size of H compared to N

Answer

C

Explanation

As F has higher electornegative than N, the bp - bp repulsion is less in case of `NF_(3)` . However in `NH_(3)` , N is more electrongative than H and hence here bp - bp repulsion is high.