1 passing excess carbon dioxide gas through lime water it first turns milky and then becomes colourless explain
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Answer:
calcium sulphite will be formed.
Explanation:
When SO2 is passed through water, we get an oily viscous liquid, which is less corrosive in nature. When sulphur dioxide is passed through lime water lime water turns milky, due to formation of calcium sulphite.
SO2 turns lime water milky due to formation of calcium sulphite.
Ca(OH)2 + SO2 → CaSO3 + H2O
Milkiness disappears due to formation of calcium hydrogen sulphite which is soluble in water.
CaSO3 + SO2 + H2O → Ca (HSO3)2
Calcium hydrogen sulphite
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