Which of the following statements is INCORRECT?

Question

Bond length of $O_2^-$ < Bond length of $O_2^{2-}$

Bond order of $O_2^+$ > Bond order of $O_2^{2-}$

Bond length of $O_2$ > Bond length of $O_2^{2+}$

Bond order of $O_2^{+}$ < Bond order of $O_2^{2-}$

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