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Which of the following configuration is expected to have maximum difference in second and third ionsation enthaIpies? `1 s^2 2 s^2 2 p^2`, `1s^2 2 s^2 2 p^6 3 s^1`, `1s^2 2 s^2 2 p^6 3 s^2`, `1s^2 2 s^2 2 p^1`

A

1 s^2 2 s^2 2 p^2'

B

1s^2 2 s^2 2 p^6 3 s^1'

C

1s^2 2 s^2 2 p^6 3 s^2'

D

1s^2 2 s^2 2 p^1'

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The correct Answer is:
A
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