1.

\[PC{{l}_{5}}\] exists but \[NC{{l}_{5}}\] does not because [EAMCET 1977, 82]

A. Nitrogen has no vacant orbitals
B. \[NC{{l}_{5}}\] is unstable
C. Nitrogen atom is much smaller
D. Nitrogen is highly inert
Answer» B. \[NC{{l}_{5}}\] is unstable


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