Assertion:- `NO_(3)^(-)` is planar while `NH_(3)` is pyramidal
Reason:- N in `NO_(3)^(-)` is `sp^(2)` and in `NH_(3)` it is `sp^(3)` hybridised with one ione pair.
A. Both A and R true and R is the correct explanation of A
B. Both A and R true and R is not a correct explanation of A
C. A is true but R is false
D. A is false but R is true