Which of the following is/are the example/ examples of chemical change? 1. Crystallization of sodium chloride?

Question

Which of the following is/are the example/ examples of chemical change? 1. Crystallization of sodium chloride?

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.

(a) 1 and 2 only (b) 3 only (c) 1, 2 and 3 (d) None

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

(b) Chemical changes occur when a substance combines with another to form a new substance. Crystallization of sodium chloride is not a chemical as water of crystallization can be lost to get salt again . Similarly melting of ice is reversible .However souring of milk is a chemical change as it is not reversible and a new compound is formed.