Question

`N_2` forms `NCl_3` whereas `P` can form both `PCl_3` and `PCl_5`. Why ?
A. P has low lying 3d - orbitals , which can be used for bonding but N does not have 3d - orbtals in its valence shell
B. N atoms is larger than P in size
C. P is more rective towards Cl than N
D. None of these

Answer 1

Correct Answer - A
Nitrogen has no d-orbitals in its valence shell.