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Objective Type Questions
\( \mathrm{N}_{2} \) and \( \mathrm{O}_{2} \) are converted into monoanions \( \mathrm{N}_{2}{ }^{-} \)and \( \mathrm{O}_{2}- \) respectively, which of the following statements is wrong?
(1) In \( \mathrm{O}_{2}^{-} \), bond length increases
(2) \( \mathrm{N}_{2}{ }^{-} \)becomes diamagnetic
(3) In \( \mathrm{N}_{2}{ }^{-} \), the \( \mathrm{N}-\mathrm{N} \) bond weakens
(4) In \( \mathrm{O}_{2}^{-} \), the \( \mathrm{O}-\mathrm{O} \) bond order decreases
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