Which of the following set of elements is present in apatite?

Which of the following oxyacids contains both $P-H$ and $P-P$ bonds simultaneously?

The number of pentagons in $C_{60}$ and trigons (triangles) in white phosphorus,respectively,are

Statement $(A)$: Among the oxides of nitrogen, $NO$ and $NO_2$ are paramagnetic.
Statement $(B)$: $NO$ is paramagnetic in the gaseous state and diamagnetic in the liquid state.
The correct answer is:

Explain why $NH_3$ is basic while $BiH_3$ is only feebly basic.

When white phosphorus is boiled with a caustic soda solution,it yields $................$.