Question

In order to obtain pure synthetic plant hormone, a 2:1 mixture of water and
ethanol is used as the crystallizing solvent. Why is a solvent mixture used?
A. Organic compounds are not soluble in pure ethanol.
B. Ethanol and water have similar boiling points, so concentration is easy.
C. Salts and inorganic impurities are soluble in pure water.
D. Synthetic plant hormone dissolves in the water/ethanol mixture at low
temperatures.
E. None of the above.

Answer 1

Any ideas?

Answer 2

I thought it was A