Question

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

Answer 1

Chemical Change

• A chemical change is one in which the chemical properties of a substance changes.
• In chemical change there is either formation or breaking of atomic bonds at the molecular level.
• Chemical change is irreversible.

Setting of curd is a Chemical Change

• The setting of curd is a chemical change.
• In setting of curd there is formation of a new substance,lactic acid from the lactose present in milk.
• The curd that results after the chemical change has different flavor from the original substance milk.
• Once there is formation of the curd, milk cannot be extracted from it.
• It’s a change that can’t be reversed.

Hence, Setting of curd is a chemical change.