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Why is the conversion of milk into curd considered a chemical change?

Answer and explanation

Correct answer: Because substances with new properties are formed

When milk changes into curd, bacterial action changes components of the milk and curd with new properties is formed. Curd differs from milk in taste, smell, and texture, so this is a chemical change. A change of state alone, such as water freezing into ice, is not a chemical change because no new substance is formed.

Related tags

ScienceClass 10Chemical ReactionsChemical ChangeCurd Formation

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