Class 10 > Science

Question

How would you distinguish between baking powder and washing soda by heating?
Hard

Solution

Due to heating baking powder (NaHCO₃) will release carbon dioxide gas which turns limewater milky. On the other hand while heating washing soda (Na₂CO₃.10H₂O) it releases water of crystallization (10H₂O) and the salt becomes anhydrous.

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