Salt A commonly used in bakery products on heating gets converted into another salt B.

Monjur Alahi

Salt A commonly used in bakery products on heating gets converted into another salt B which itself is used for removal of hardness of water and a gas C is evolved. The gas C when passed through lime water, turns it milky. Identify A, B and C.


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Salim Ahmed Kawsar

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Baking powder (NaHCO3), Salt A is commonly used in bakery products. On heating, it forms sodium carbonate (Na2CO3), B and CO2 gas, C is evolved. When CO2 gas is passed through lime water it forms calcium carbonate (CaCO3), which is slightly soluble in water making it milky. 

A — NaHCO3;    B — Na2CO3;      C — CO2 gas

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