Question

How would you show that setting of curd is a chemical change?​

Answer 1

Setting of curd is a chemical change because we cannot get the original substance (milk) back. The new substance, i.e. curd is different from the milk in taste, smell and chemical properties.

Answer 2

Answer:

In the setting of curd, milk changes into new substance, curd. This is an irreversible process that means milk cannot be made from curd. Formation of new substance and irreversible process shows that setting of curd is a chemical change.