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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES
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Which of the following represents the correct order of increasing electron gain enthalpy with negative sign
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Correct option: B
Option B (O < S < F < Cl) is correct because electron gain enthalpy generally increases across a period and decreases down a group, with chlorine having a higher electron affinity than fluorine due to fluorine's small size.
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