MCQ
$PC{l_5}$ exists but $NC{l_5}$ does not because
- ✓Nitrogen has no vacant $d-$ orbitals
- B$NC{l_5}$ is unstable
- CNitrogen atom is much smaller
- DNitrogen is highly inert
✓
Answer
Correct option: A.
Nitrogen has no vacant $d-$ orbitals
(a) Nitrogen does not have vacant $‘d’-$ orbitals so it can’t have $+5$ oxidation state
i.e. the reason $PC{l_5}$ exists but $NC{l_5}$ does not.
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