Which of the following methods is NOT used for the separation of mixtures?

A. Chromatography
B. Crystallization
C. Distillation
D. Electrolysis

Correct Answer:

Option D = Electrolysis

Explanation

Uses of electrolysis:

• Electrolysis is used in the extraction of metals from their ores.
• It is used for refining certain metals such as copper and zinc.
• Electrolysis is used for the manufacture of chlorine.
• Electrolysis is used for electroplating many things we use every day.