Question

The bond angles of `NH_(3),NH_(4)^(o+)` and `overset(Theta)(NH_(2)` are in the order .
A. `NH_(2)^(-) lt NH_(3) gt NH_(4)^(+) `
B. `NH_(4)^(+) gt NH_(3) gt NH_(2)^(-)`
C. `NH_(3) gt NH_(2)^(-) gt NH_(4)^(+) `
D. `NH_(3) gt NH_(4)^(+) gtNH_(2)^(-)`

Answer 1

Correct Answer - B
As the number of lone pairs of electrons increases, bond angle decreases. Therefore, the order of bond angle
`underset(No lp)(NH_(4)^(+)) gt underset(1lp)(NH_(3)) gt underset(2lp)(NH_(2)^(-))`