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8. A compound X is a constituent of baking powder. It is used as an antacid. When X is heated it gives out ywhich, when passed through lime water turns it milky and salt Z is formed, which is the main constituent ofwashing powder.Identify X, Y and Z. Write balanced chemical equation for the reaction involved. Name the otherconstituent of Baking powder.

Answer»

X - NaHCO₃Y - CO₂Z - Na₂CO₃

Reactions involved are as follows:

1. 2NaHCO₃ ---Δ---> Na₂CO₃ + H₂O + CO₂ 2. Ca(OH)₂ + CO₂ ------> CaCO₃ + H₂O



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