Which of the following is/are the example/examples of chemical change?Crystallization of sodium chlo

Question

Which of the following is/are the example/examples of chemical change?Crystallization of sodium chlorideMelting of iceSouring of milkSelect the correct answer using the code given below.

Accepted Answer

Crystallization of sodium chloride and melting of ice are physical changes as they involve a change of state. Souring of milk is a chemical change because it results in the formation of new substances.Source: 7th NCERT: Science Chapter