Question

Method used for separating dyes in ink is called __________.

• A. crystallization
• B. chromatography
• C. distillation
• D. filtration

Answer 1

Answer: (B)

chromatography

Chromatography is a method of separating out materials from a mixture. Ink is a mixture of several dyes and therefore we can separate those colors from one another using chromatography. When ink is exposed to certain solvents the colors dissolve and can be seperated out. When we expose a piece of paper with ink on it to a solvent, the ink spreads across the paper when the ink dissolves.