NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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

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Correct option: B

Increasing

I{E_1}\mathrm{\;}:\mathrm{B} < C < N < O

Option B (Increasing

I{E_1}\mathrm{\;}:\mathrm{B} < C < N < O

) is correct because the first ionization energy of Oxygen is less than Nitrogen due to the extra stability of half-filled p-orbitals in Nitrogen.

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