Question

Describe, how milk can be changed irreversibly into a new substance.

Answer 1

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Here is your answer..............

The change of milk into curd is both a physical and chemical change. Physical change; as the milk turns into curd and forms a mass as the milk solid make a cluster. And Chemical change; as the lactose in the milk turns into lactic acid, and as acid increases the coagulation takes place.

Answer 2

Answer:

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HERE'S YOUR ANSWER :)

The change of milk into curd is both a physical and chemical change. Physical change; as the milk turns into curd and forms a mass as the milk solid make a cluster. And Chemical change; as the lactose in the milk turns into lactic acid, and as acid increases the coagulation takes place.