Question

multiple choice 1 point
which property of caffeine allows it to be separated using dichloromethane in a liquid - liquid extraction?
caffeine is ionic and precipitates in dichloromethane
caffeine sublimes in dichloromethane
caffeine is non - polar and more soluble in dichloromethane than in water
caffeine is polar and more soluble in water than in dichloromethane

Explanation:

In liquid - liquid extraction, a compound is separated based on solubility differences between two immiscible solvents. Caffeine is non - polar and dichloromethane is a non - polar solvent, so caffeine is more soluble in dichloromethane than in polar water, allowing for separation.

Answer:

C. Caffeine is non - polar and more soluble in dichloromethane than in water