Correct them :- true or false

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Dear Student, 

1. False. Cooking of potato is a chemical change as it involves changes in composition of potato. The uncooked potato cannot be obtained again.

2. False. Souring of milk is a chemical and irreversible change.

3.False. Chemical changes are generally irreversible in nature.

4. True. Cooking involves changes in composition of food therefore it is a chemical change.

5.False. Drying of clothes is a physical and reversible change. The clothes can be made wet again.

Regards,