The gas formed, when calcium bisulphite reacts with dilute HNO 3 :

ICSE Class 10 Chemistry PYQ · 2022 Semester 2 · Section A

1(v)1 Mark · 2022 · Section A · 2022 Semester 2

The gas formed, when calcium bisulphite reacts with dilute HNO3:

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Sulphur dioxide

Reason — Ca(HSO3)2 + 2HNO3 [dil.] ⟶ Ca(NO3)2 + 2H2O + 2SO2

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