Which type of reaction occurs in this equation? 2 NO sub 2 g plus 2 OH raised to the negative A q power rightarrow NO raised to the 2 minus power times A q plus NO raised to the 3 minus power times A q plus cap h sub 2 cap o l

In NO₂, oxygen is −2, so nitrogen is +4. In the products, nitrogen is +3 in NO₂⁻ and +5 in NO₃⁻: some nitrogen is reduced while some is oxidized. When the same element is both oxidized and reduced in one reaction, it is a disproportionation redox reaction, choice B.

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