Salt A commonly used in bakery products on heating convert into salt B which is used for removal of hardness of water and gas C is evolved. The gas C when paved through lime water turns milky. Identify A,B,C.
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A is sodium bicarbonate (baking soda)..... B is washing soda and C is carbon dioxide
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substance A: sodium hydrogen bicarbonate ( NaHCO₃) also called baking soda . When baking soda is mixed with tartaric acid to make it baking powder and that is used in bakery
NaHCO₃ + H⁺→ Na⁺ + CO₂ + H₂O
substances B: sodium carbonate ( Na₂CO₃) also called washing soda . It is formed when sodium hydrogen carbonate is heated up
2NaHCO₃ ⇒Na₂CO₃ + CO₂ + H₂O
substances C : it is carbon dioxide ( CO₂) which turn lime water into milky
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