Match the items of Column I and Column II.
Channel: Doubtnut
Date: 2021-11-02

Match the items of Column I and Column II. `{:("Column I","Column II"),("A. Dialysis ","1. Cleansing action of soap "),("B. Peptisation ","2. Coagulation"),("C. Emulsification ","3. Colloidal sol formation "),("D. Electrophoresis ","4. Purification"):}`