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Applications of Crystallisaion

While obtaini...

Question

While obtaining pure copper sulfate by crystallization, the solution is saturated that is indicated by:

A

change in color

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B

change in consistency

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C

formation of bubbles

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D

formation of crystals near rod

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Solution

The correct option is D formation of crystals near rod
During purification of copper sulfate by crystallization, the impure sample is mixed with water and then heated to saturation. The saturation is indicated by dipping the glass rods in solution from time to time. Small crystals are formed near the glass rods which indicates saturation.

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