Question

Salt P is commonly used in bakery products. On heating it gets converted to another salt

Q which is used to remove hardness of water and a gas R is evolved. The gas R when

passed through freshly prepared lime water turns it milky. Identify P, Q and R and give

chemical equations involved​

Answer 1

Answer:

Ans - sodium carbonate which is used for the removal of hardness of water and the gas 'R' evolved is carbon dioxide. The gas 'R' i.e. CO2 , when passed through freshly prepared lime water, turns milky due to the formation of calcium carbonate.

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