The question is incomplete, the complete question is;
If you were to perform a recrystallization experiment and wanted to form very large crystals of pure substance, what would be the most UNfavorable conditions?
A. Fast cooling solution, use of an anti-solvent, rapidly evaporating solution
B. Slowly cooling solution, slowly evaporating solvent
Answer:
Fast cooling solution, use of an anti-solvent, rapidly evaporating solution
Step-by-step explanation:
Recrystallization is a process of obtaining pure crystals from solution. The procedure involves dissolving the crystals in a solution in which they are soluble at high temperature but insoluble at low temperature.
As the solution cools, the pure crystals are obtained from the solution.
The solvent to be used must be a slow cooling, slow evaporating solvent so that the crystals can be efficiently recovered from solution.