CHEMISTRY

JAMB 2006 - Question 29

Chemistry 2006 JAMB Past Questions - Question 29: When a crystal was added to the clear solution of its salt, the crystal did not dissolve and the solution remained unchanged. This showed that the solution was

Choose the correct answers from the options given.
When a crystal was added to the clear solution of its salt, the crystal did not dissolve and the solution remained unchanged. This showed that the solution was
A:
B:
C:
D:
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Correct Answer

A

Explanation

When a crystal does not dissolve in a clear solution and the solution remains unchanged, it indicates that the solution is supersaturated. In a supersaturated solution, there is an excess amount of solute dissolved at a temperature where it would normally be less soluble. The addition of a crystal, seed, or disturbance can trigger the precipitation of the excess solute, causing the solution to return to a saturated state.