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Which among the following are, respectively the correct oxidation numbers of chloride ion in Cl2O7, Cl2O, ClO3- and ClO2-? [CAPF (ACs) 2026]

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1. Which among the following are, respectively the correct oxidation numbers of chloride ion in Cl2O7, Cl2O, ClO3- and ClO2-? **[CAPF (ACs) 2026]**

+7, +2, +4, +3

+2, -1, -3, +4

+7, +1, +3, -3

+7, +1, +5, +3

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