Chemistry
The gas formed, when calcium bisulphite reacts with dilute HNO3:
- Sulphur trioxide
- Hydrogen
- Sulphur dioxide
- Hydrogen sulphide
Nitric Acid
ICSE 2022
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Answer
Sulphur dioxide
Reason — Ca(HSO3)2 + 2HNO3 [dil.] ⟶ Ca(NO3)2 + 2H2O + 2SO2
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