Per NCERT Problem 7.6, the reaction 2 NO₂(g) + 2 OH⁻ → NO₂⁻ + NO₃⁻ + H₂O is classified as which type?
ADecomposition
BDisproportionation
CMetal displacement
DCombination
Answer & Solution
Correct answer: B. Disproportionation
NCERT Problem 7.6(d): N in NO₂ (+4) goes to NO₂⁻ (+3) and NO₃⁻ (+5) — disproportionation.
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