Which one of the following compounds does not exist?
Which one of the following compounds does not exist?
A. `NCl_(5)`
B. `AsF_(5)`
C. `SbCl_(5)`
D. `PF_(5)`
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Correct Answer - A
`NCl_(5)` does not exist as N cannot have a covalency of 5. this is because N can not expands is octet due to -availability of d-subshell in the valence shell.
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