Which one of the following procedures is correct to detect the acidic nature of SO2 gas?(1) Insert wet blue litmus paper in a gas jar filled with SO2 gas(2) Insert wet red litmus paper in a gas jar filled with SO2 gas(3) Insert dry blue litmus paper in a gas jar filled with SO2 gas(4) Insert dry red litmus paper in the gas jar filled with SO2 gas

Which one of the following procedures is correct to detect the acidic

1.	Which one of the following procedures is correct to detect the acidic nature of SO2 gas?(1) Insert wet blue litmus paper in a gas jar filled with SO2 gas(2) Insert wet red litmus paper in a gas jar filled with SO2 gas(3) Insert dry blue litmus paper in a gas jar filled with SO2 gas(4) Insert dry red litmus paper in the gas jar filled with SO2 gas
Answer» Which one of the following procedures is correct to detect the acidic nature of SO₂ gas? (1) Insert wet blue litmus paper in a gas jar filled with SO₂gas (2) Insert wet red litmus paper in a gas jar filled with SO₂ gas (3) Insert dry blue litmus paper in a gas jar filled with SO₂gas (4) Insert dry red litmus paper in the gas jar filled with SO₂ gas