When sulphur dioxide is bubbled through sodium hydroxide solution, then :

Foundation

Chemistry Foundation

Chemical Properties of Acids and Bases

Question

sodium sulphide is produced along with water.

solution turns milky or cloudy in colour.

none of these.

sodium sulphate is produced and hydrogen gas is evolved.

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2NaOH + SO₂ → Na₂SO₃ + H₂O solution becomes milky because of the formation of ppt of Na₂SO₃ .