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प्रश्न
Which of these represents the correct order of their increasing bond order.
विकल्प
C2+ < C22- < O22- < O2
C22- < C2+ < O2 < O22-
O22- < O2 < C22- < C2+
O22- < C2+ < O2 < C22-
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उत्तर
O22- < C2+ < O2 < C22-
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