Question

what is crystallisation? write an activity to obtain crystals through crystal method
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Answer 1

Answer:

Crystallization or crystallisation is the process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal. Some of the ways by which crystals form are precipitating from a solution, freezing, or more rarely deposition directly from a gas.

Crystallization is a common technique used to purify solids. Two common methods of crystallization are “gradual cooling” and “diffusion”. Gradual cooling involves dissolving the impure solid in a minimum amount of a hot solvent and allowing the resulting solution to cool slowly to room temperature.

Answer 2

Explanation:

Crystallization is the process of obtaining substances in a pure state from their solution. Eg. Salt from sea water.

How to obtain crystals of copper sulphate?

1. Water + Dilute Suphuric acid
2. Heat and boil
3. Add copper suphate powder till no more is dissolved
4. Filter and cool
5. You have obtained crystals of copper sulphate