1.

In case of nitrogen, NCl_(3) is possible but not NCl_(5)while in case phosphrous, PCl_(3) as well as PCl_(5) are possible. It is due to

Answer»

Availability of vacant d orbitals in P but not in N
Lower electronegativity of P than N
Lower tendency of H-bond formation in P than N
Occurrence of P is SOLID while N in gaseous STATE at room temperature

Answer :1


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