1.

NCl_3 is possible for nitrogen while NCl_5 is not possible. For phosphorus atom PCl_3 and PCl_5 both are possible. The reason for this is.....

Answer»

P-atom POSSESSES VACANT d-orbitals, while N-atom does not POSSESS.
The elctronegativity of P is less than that of N.
The tendency to form hydrogen BOND for phosphorus is less than that of nitrogen
At normal temperature phosphorus is solid, while nitrogen possesses gaseous state.

Solution :P-atom possesses vacant d-orbitals, while N-atom does not possess.


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