The correct option is B False
For baking a cake, we first make the batter and then put it in the oven. Heat is provided inside the oven and then this batter changes into a cake. Once the cake is formed, we cannot get back the original batter and the chemical composition of cake is different from that of batter. In any physical change, the chemical composition of a substance does not change. Hence baking of cake is not a physical change but a chemical change.