Q50.
Which of the following is/are the example/examples of chemical change? 1. Crystallization of sodium chloride. 2. Melting of ice. 3. Souring of milk. Select the correct answer using the code given below.
Answer
B
Explanation
Crystallisation of sodium chloride and ice melting are physical changes as they involve only change of state. Souring of milk is a chemical change as new substances are formed.