Question

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

Medium

Solution

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When baking powder is heated, carbon dioxide is produced. This can be shown by following equation.



Evolution of carbon dioxide can be confirmed by passing the gas into lime water. if limewater turns milky, it indicates evolution of carbon dioxide gas. This reaction does not happen when washing soda is heated.

Solve any question of Acids, Bases and Salts with:-

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