Question

Which process usually follows isolation after chemically active separation?

a)addition of a base
b)addition of an acid
c)recrystallization
d)performing an extraction

Answer 1

The process that usually follows isolation after chemically active separation is recrystallization, which is utilized to purify compounds by exploiting their temperature-dependent solubility to form pure crystals.

Step-by-step explanation:

After chemically active separation, the process that usually follows isolation is recrystallization. This method is widely used to purify compounds by separating them from their impurities. In recrystallization, the substance to be purified is dissolved in an appropriate solvent at a high temperature and then allowed to cool slowly. As the solution cools, the product forms crystals, while impurities remain dissolved in the solvent or form smaller, less pure crystals that can be separated by filtration. This technique leverages the principle that the solubility of compounds varies with temperature.

In contrast, performing an extraction is a process typically used prior to isolation in order to separate compounds based on their chemical properties, such as solubility in a particular solvent.