GyanGramWhich of the following is/are the example/examples of chemical change? 1. Crystallization of sodium chloride…
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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
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• Correct Answer: B
• Souring of milk involves bacterial fermentation of lactose into lactic acid, altering chemical composition irreversibly.
• Crystallization and melting are physical changes involving only state/form alteration without new substance formation.
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