Question

51. Adsorption is a: (A) Bulk phenomenon (C) Both A and B (B) Surface phenomenon (D) None 52. The electrical charge on a colloidal particle is indicated by (A) Brownian movement (B) Electrophoresis (C) Ultra-microscope (D) Molecular sieves 53. All colloids (A) Are suspensions of one phase in another (B) Are two phase system (C) Contain only water-soluble particle (D) Are true solutions 54. Size of colloidal particles in a solution is (A) Between 1 to 100 nm (B) Between 10° to 10-7 m (C) Both (A) and (B) (D) None of these​

Answer 1

51.) surface phenomenon

52.) electrophoresis

Hope it helps..!

Mark brainliest..! (◍•ᴗ•◍)❤

Answer 2

Answer:

1 .. both

Explanation:

2.. Electrophoresis

3...Are two phrase system

4.. both

• thank you