Question

Why curdling of milk is a chemical change?

Answer 1

because when curd is formed from milk ,milk loss its properties and new thing( curd ) is formed . the change is permanent in nature as milk cannot be formed from curd now that's why curdling of milk is a chemical change.


hope it helps

Answer 2

The curdling of milk is a chemical change.

The type of change which leads to the formation of new product with different properties and the obtained product cannot be reversed again to the reactant is called as chemical change.

When milk is curdled, the liquid form of milk gets converted into solid and leads to the formation of curd. As curdling of milk leads to formation of curd which differ in chemical properties when compared to milk, the process is considered as chemical change.