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The correct order of electron affinity o...

The correct order of electron affinity of B, C, N, O is

A

`O gt C gt N gt B`

B

`B gt N gt C gt O`

C

`O gt C gt B gt N`

D

`O gt B gt C gt N `

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(140.9)O gt underset(122.3)C gt underset(83)B gt underset0 N` Value of electron affinity increases on going from left to right in periods but the value of electron affinity of Vth A elements is less than that of IVth A element, this is due to half filled p-orbitals present.
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