Oxidation-Reduction Reactions

AP Chemistry· difficulty 3/5

The oxidation state of O in H₂O₂ (hydrogen peroxide) is

  • A

    −2 (as in water)

  • B

    +1

  • C

    0

  • D

    −1 (peroxide)

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Explanation

Peroxides have O-O single bond, with O in the -1 state. Each H is +1. 2(+1) + 2(−1) = 0 ✓.

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