Specify the coordination geometry around and the hybridisation of `N` and `B` atoms in `1 : 1` complex of `BF_(3)` and `NH_(3)`.

Options

A. N : tetrahedral, `sp^(3)` , B : tetrahedral, `sp^(3)`
B. N : pyramidal, `sp^(3)` , B : pyramidal, `sp^(3)`
C. N : pyramidal, `sp^(3)` , B : planar, `sp^(2)`
D. N : pyramidal, `sp^(3)` , B : tetrahedral, `sp^(3)`

Answer

A

Explanation

In the 1 : 1 complex, `H_(3)N rarr BF_(3)`, both N and B have `sp^(3)` hybridisation and tetrahedral geometry.