Chemistryhard · Past Paper

Identify the oxidant in the reaction: H2S + HNO3 -> NO2 + S + H2O.

AH2S
BHNO3
CS
DNO2

✓ Correct Answer: BHNO3

Nitric acid (HNO3) gains electrons (Nitrogen goes from +5 to +4), making it the oxidant (oxidizing agent).

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