Which of the following is not a method of removing impurities from a colloidal sol?
A. Electrodialysis
B. Ultrafiltration
C. Ultra centrifugation
D. Distillation
Answer:D
Which of the following is not a method of removing impurities from a colloidal sol?
A. Electrodialysis B. Ultrafiltration C. Ultra centrifugation D. Distillation