Question

(choose all applicable answers) When choosing a solvent for recrystallization, 6 Multiple answers: You can select more than one option 0 A the compound of interest must be soluble in the solvent at high temperature and insoluble at lower temperature о в impurities must be soluble in the solvent at high temperature and soluble in the solvent at low temperature o C the compound of interest must be insoluble in the solvent at high temperature and soluble at low temperature O D impurities must be insoluble in the solvent at high temperature and insoluble in the solvent at low temperature

Answer 1

Correct options are :

(A) the compound of interest must be soluble in the solvent at high temperature and insoluble at lower temperature

(B) impurities must be soluble in the solvent at high temperature and soluble in the solvent at lower temperature

Explanation

When mixture of compound + impurity is heated to higher temperature in solvent, both substances dissolve. When temperature is lowered, compound becomes insoluble but impurities remain soluble.

This is how recrystallization of compound is done to obtain a pure compound