O− ion will tend to resist the addition of another electron
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B
oxygen has high electron affinity
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C
oxygen is more electronegative
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D
O− ion has comparatively larger size than oxygen atom
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Solution
The correct option is AO− ion will tend to resist the addition of another electron O− ion tends to resist the addition of another electron due to large repulsion of e−− e− in small sized O− ion. Thus, energy is required to overcome this force of repulsion.