Question

Please answer this fast.

Answer 1

The answer is b. Formation of crystals by process of crystallisation

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Answer 2

Option B is correct, the identity of the initial substance remains unchanged.

• Crystallization is also known as the formation of crystals which is a commonly used method used to form crystals of any substance.  
• This is because of their irreversible nature as they can be dissolved in water and made into a solvent.  
• The other given options like curdling of milk, fermentation of grapes, and digestion of food completely change themselves after reaction and cannot be reversed.
• Crystallisation is done by evaporating the solution and then cooling it when it becomes saturated.