In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, `PCl_(5)` are possible. It is due toA. availability of vacant d-orbitals in P but not in NB. lower electronegativity of P than NC. lower tendency of H-bond formation in P than ND. occurrence of P in solid while N in gaseous state at room temperature.

In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in

1.	In case of nitrogen, `NCl_(3)` is possible but not `NCl_(5)` while in case of phosphorous, `PCl_(5)` are possible. It is due toA. availability of vacant d-orbitals in P but not in NB. lower electronegativity of P than NC. lower tendency of H-bond formation in P than ND. occurrence of P in solid while N in gaseous state at room temperature.
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