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Increasing order of electron affinity is...

Increasing order of electron affinity is

A

`N lt O lt Cl lt Al`

B

`O lt N lt Al lt Cl`

C

`N lt Al lt O lt Cl`

D

`Cl lt N lt O lt Al`

Text Solution

Verified by Experts

The correct Answer is:
C
It is `N lt Al lt O lt Cl`
Regarding order of `Al and N, N` has positive value for electron gain enthalpy as it has half filled p-orbital hence it absorbs energy on accepting an electron rather than releasing as expected. The higher negative value of `e^(-)` gain enthalpy, higher is the E.A.
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