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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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Understanding +4 | -1
The first ionisation potential (eV) of Be and B respectively are
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Correct option: D
9.32 eV, 8.29 eV
Option C (Dioxygen is paramagnetic) is correct because dioxygen (O2\mathrm{O_2}) has unpaired electrons in its molecular orbital configuration, resulting in its paramagnetic property.

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