Which of the following does not hydrolyse in water?
Explanation of correct option: (B)
In , Nitrogen does not have any vacant orbitals. Hence, it cannot be hydrolysed.
Explanation of incorrect options:
Option (A): In , there is a vacant 3d-orbital on the phosphorus atom and there is no steric hindrance. Hence, it can be hydrolysed.
Option (C): is an ionic compound which will easily dissociate in water.
Option (D): In , boron has a vacant p-orbital which can undergo hydrolysis.
Therefore, the correct option is B.