Question

In acidic medium, H₂O₂ changes $Cr_2O_7^{-2}$ to CrO₅ which has two (–O–O) bonds. Oxidation state of Cr in CrO₅ is:-
(a) + 5
(b) + 3
(c) + 6
(d) – 10

Answer 1

correct answer is +6