How would you distinguish between baking soda and washing soda by heat

1.	How would you distinguish between baking soda and washing soda by heating
Answer» The production of carbon dioxide is main characteristic of baking soda that makes it suitable for baking. The gas produced by heating of the samples can be checked by passing through lime water. If the lime water turns milky then the evolved gas is carbon dioxide and the heated substance is baking powder.

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