In which of the following arrangements is the | vedclass

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(B) In the arrangement of option $B$,the order is not correct according to the property indicated against it.The correct order for increasing first io

Vedclass · Accepted Answer

Increasing $IE_1$ : $B < C < N < O$

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(B) In the arrangement of option $B$,the order is not correct according to the property indicated against it.The correct order for increasing first ionisation energy $(IE_1)$ is $B The ionisation energy of $N$ is higher than that of $O$. This is because $N$ $(2s^2 2p^3)$ has a stable half-filled $p$-orbital configuration,which requires more energy to remove an electron compared to $O$ $(2s^2 2p^4)$.

In which of the following arrangements is the order not correct according to the property indicated against it?

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