Question

The process of removing dissolved impurities from a colloidal system by means of diffusion through the suitable membrane under the influence of an electric field is called :
a.) electro-osmosis
b.) electrodialysis
c.) electrophoresis
d.) peptization

Answer 1

Hint: The dialysis is the process of removal of dissolved impurities from the colloidal system by means of diffusion through the suitable membrane while the dialysis is the process of removal of dissolved impurities from the colloidal system by means of diffusion through the suitable membrane. The process mentioned above is used when any one suffers damage in the kidneys and requires cleaning of blood.

Complete answer:
First, let us learn the process of diffusion. The diffusion is the movement of substances from the region of higher concentration to the region of lower concentration without the involvement of any membrane.
The osmosis is the process of movement of a solute from the region of its higher concentration to a region of lower concentration through a semipermeable membrane.
The dialysis is the process of removal of dissolved impurities from the colloidal system by means of diffusion through a suitable membrane. The impurities are the excess material that is not required in the solution.
With the advancement in technology, many processes use advanced techniques. Similar is the case with this.
With the use of electricity, the electric field can be created and this results in an increase in the speed of the process so that the results could be collected earlier.
So, the process of removing dissolved impurities from a colloidal system by means of diffusion through the suitable membrane under the influence of an electric field is called electrodialysis.

Thus, option b is the correct answer.

Note: It must be noted that our blood is colloidal in nature. The impurities present are all the unwanted salts like solutes, water etc. The electrodialysis is used to clean blood in those whose kidneys can not function properly. This is called renal replacement therapy.