Baking a cake is an example of -

a. forming mixtures.

b. forming solutions.

c. exothermic reactions.

d. endothermic reactions.

I think the correct answer is D. Baking a cake is an example of endothermic reaction. The chemical changes happening when you bake a cake includes denaturing proteins in milk, eggs, and flour. Chemical bonds are broken and new bonds are made. To aid these changes, heat is supplied by the heat in an oven.