Answer:
The gas evolved because of reaction of acid with metal carbonate or metal hydrogen carbonate turns lime water milky. This shows that the gas is carbon dioxide gas. This happens because of formation of white precipitate of calcium carbonate.
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The milky substance formed is CO₂ gas.
The gas evolved because of reaction of acid with metal carbonate or metal hydrogen carbonate turns lime water milky. This shows that the gas is carbon dioxide gas.
This happens because of formation of white precipitate of calcium carbonate.
Lime water turns milky when the gas liberated from an acidified carbonate solution is passed into it.
The liberated CO₂ reacts with lime water to give calcium bicarbonate as the precipitate.
Hence, the milky substance formed is CO₂ gas.
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