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In the species \( \mathrm{O}_{2}, \mathrm{O}_{2}^{+}, \mathrm{O}_{2}^{-} \)and \( \mathrm{O}_{2}^{2-} \), the correct decreasing order of bond strength is:
(a) \( \mathrm{O}_{2}\mathrm{O}_{2}^{+}\mathrm{O}_{2}^{-}\mathrm{O}_{2}^{2-} \)
(b) \( \mathrm{O}_{2}^{+}\mathrm{O}_{2}\mathrm{O}_{2}^{-}\mathrm{O}_{2}^{2-} \)
(c) \( \mathrm{O}_{2}^{2-}\mathrm{O}_{2}^{-}\mathrm{O}_{2}^{+}\mathrm{O}_{2} \)
(d) \( \mathrm{O}_{2}^{-}\mathrm{O}_{2}^{2-}\mathrm{O}_{2}\mathrm{O}_{2}^{+} \)
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