The sequence that correctly describes the relative bond strength pertaining to oxygen molecule and its cation or anion is

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O22->O2->O2>O2+

O2>O2+>O2->O22-

O2+>O2>O22->O2-

O2+>O2>O2->O22-

answer is D.

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Detailed Solution

Bond order of oxygen molecule = 2Bond order of oxygen molecule ion = 2.5Bond order of superoxide ion (O2-) = 1.5Bond order of peroxide ion (O22-) = 1Hence, the order of bond strength is asO2+>O2>O2−>O22−

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