Question

the reappeareance of excess of undissolved substance in hot water on cooling is called crystallization​

Answer 1

Answer:

If the saturated solution of a substance at a particular temperature is cooled to a lower temperature, then the solubility of the substance decreases and some of the dissolved substance will separate out in form of solid crystals. Hot water will dissolve more substance whereas cold water will dissolve less substance.

Explanation: