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To from a supersaturated solution of sal...

To from a supersaturated solution of salt one must:

A

Cool slowly

B

Cool rapidly

C

(c ) Add some salt to cold solution

D

(d) Use a clear vessel

Text Solution

Verified by Experts

The correct Answer is:
B
On rapid cooling, temperature falls rapidaly, crystallisation occurs but slowly. Thus metastable state or supersaturated solution state exist for a short while.
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There are some of the characteristics of the supersaturated solution (P) Equilibrium exists between solution and solid solute. (Q) If a crystal of solute is added to supersaturated solution, crystallisation occurs rapidly ®Supersaturated solutions contain more solute than they should have at a particular temperature. Correct characteristics of supersaturated solutions are:

A supersaturates solution is a metastable state of solution in which solute concentration: