Question

Roasting of sulphide ore gives the gas (A).(A) is a colourless gas. Aqueous solution of (A) is acidic. The gas (A) is ____________.

विकल्प

• CO₂

• SO₃

• SO₂

• H₂S

Answer 1

Roasting of sulphide ore gives the gas (A).(A) is a colourless gas. Aqueous solution of (A) is acidic. The gas (A) is SO₂.