Question

Which of following will not exist :-
O NF5
O BiI5
ОРbI4
O All​

Answer 1

Answer:

P has vacant 3d−orbitals in its valence shell while N does not have. As a result, P can form additional bonds to give PF

5 while N cannot extend its covalency beyond three and hence it forms only NF

3but not NF 5