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Arrange `S,O and Se` in acending order of electron affinity?A. `Se lt S lt O`B. `O lt Se lt S`C. `S lt O lt Se`D. `S lt Se lt O` |
Answer» Correct Answer - B On moving down in the group `EA` decreases but due to smaller size of oxygen incoming electoron experience more repulsion so `EA` of `O` is less then S. `S gt O gtSe`. |
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