1. Diethyl ether is a non-polar solvent that is often used in organic chemistry. It is a colorless, flammable liquid with a slightly sweet odor. Diethyl ether is immiscible with water and soluble in most organic solvents.

2. Acetone is a polar aprotic solvent that is often used in industry and in the laboratory. It is a colorless, flammable liquid with a fruity odor. Acetone is miscible with water and soluble in most organic solvents.