Crey | H₂O₂ changes Cr₂O₇²⁻ ion to CrO₅ in an acidic medium, the oxidation state of Cr in CrO₅ is -10, +5, +6, +3

Question

H₂O₂ changes Cr₂O₇²⁻ ion to CrO₅ in an acidic medium, the oxidation state of Cr in CrO₅ is

Options :

-10
+5
+6
+3

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