Question

Colloidal solutions are not purified by
(a) Dialysis
(b) Electrodialysis
(c) Ultrafiltration
(d) Electrophoresis

Answer 1

Electrophoresis is the answer

Electrophoresis is the method of separation of DNA fragments in r-DNA technology

Answer 2

Answer:

Colloidal solutions are not purified by (d) Electrophoresis.

Explanation:

Electrophoresis is a method used for separating charged particles based on size and hence used in case of DNA, RNA and proteins.

Gel electrophoresis is the process used for separation of the given biomolecules.

Purification of colloidal solutions can be achieved with the help of dialysis( electrodialysis, hemodialysis), centrifugation and ultrafiltration.