In which of the following molecules , the type of hybridization changes when

Options

A. `NH_(3)` cambines with `H^(+)`
B. `AIH_(3)` cambines `H^(-)`
C. in both cases
D. in none of the above

Answer

b

Explanation

In `NH_(3)`, the hybridisation of `N is sp^(3)`. In `NH_(4)^(+)` , the hybridisation remains `sp^(3)`. In `AIH_(3)`, the hybridisation of `AI is sp^(2)`. And in `AIH_(4)^(-)`, it becomes `sp^(2)`.