question_answer 56)

    Salt A commonly used in bakery products on heating gets converted in to 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.        

Answer:

  Salt A is sodium bicarbonate NaHCO2 (as it is used in bakery products and gives on heating). Salt B is sodium carbonate(it is used for removal of hardness of water) Gas C is carbon dioxide  (as it turns lime water milky). This can be shown as follows