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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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The ionisation energy and electron affinity of an element are 13.0 eV and 3.8 eV resp.
It’s electronegativity is

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Correct option: B

Option A (2.8) is incorrect. Option B (3) is correct because electronegativity is approximately the average of ionization energy and electron affinity, scaled appropriately.

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