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Compare the relative stability of the following species and indicate their magnetic properties O2, O2+, O2- (superoxide), O22- (peroxide)

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Bond orders of the different species are:-

O2 (2.0), O2+ (2.5), O2- (1.5), O22- (1.0)

Relative stability: O2+ > O2 > O2- > O22

(i) O2 is paramagnetic

(ii) O2+ is paramagnetic

(iii) O2- is paramagnetic

(iv) O22- is diamagnetic

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