Setting of curd is regarded as a chemical change, explain why? - Vidyadip

Question

Setting of curd is regarded as a chemical change, explain why?

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Answer

Curd is formed by adding some sour substance to milk and keeping it undisturbed for some hours. Some useful bacteria help in the setting of curd. Curd cannot be converted into milk. It is a different substance than milk. Hence, formation of curd is a chemical change.

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