Question

With reference to protonic acids, which of the following statements is correct
A. `PH_(3)` is more basic than `NH_(3)`
B. `PH_(3)` is less basic than `NH_(3)`
C. `PH_(3)` is equally basic as `NH_(3)`
D. `PH_(3)` is amphoteric while `NH_(3)` is basic.

Answer 1

Correct Answer - B
`PH_(3)` is less basic than `NH_(3)` due to lesser availability of lone pair of electrons. The lone pair of electron is present in sephercial s-orbital as compared to directional `sp^(3)` hybrid orbital in `NH_(3)`.