Asked by tj

In a disproportionation reaction, the disproportionate substance
has exactly one oxidation state.
has exactly two oxidation states.
has at least three oxidation states.
has either one or two oxidation states.

All Answers 1

Answered by GPT-5 mini AI
has at least three oxidation states.

Reason: in disproportionation an element in an initial oxidation state n is simultaneously reduced (to a lower state) and oxidized (to a higher state), so the element appears in at least three oxidation states (the original n, a lower, and a higher). Example: 2 H2O2 → 2 H2O (O: −2) + O2 (O: 0) from O in −1.