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The correct order of ionisation enthalpy...

The correct order of ionisation enthalpy of C, N, O, F is

A

CltOltNltF

B

CltNltOltF

C

FltNltCltO

D

FltOltNltC

Text Solution

Verified by Experts

The correct Answer is:
A
On moving let to right , ionization enthalpy increases, `:.` Expected order `: Clt Nlt Olt F`.
However, nitrogen has exceptionally high ionization enthalpy due to stable half filled electronic configuration. Therfore actual order of ionisation enthalpy is `CltOltNltF`.
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