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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Analyzing +4 | -1

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

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Correct option: C

\mathrm{B} < C < N < O

increasing first ionisation enthalphy

Option C (

\mathrm{B} < C < N < O

increasing first ionisation enthalphy) is correct because the ionization enthalpy of Nitrogen is higher than Oxygen due to the stable half-filled electronic configuration of Nitrogen.

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