sols do not exhibit the following property (a) tyndall effects (b) coagulation (c) adsorption (d) magnetic property
Answers
Answer:
Correct options are A) , B) and C)
Explanation:
Stability of the lyophobic sols is due to presence of charge on colloidal particles. If charge is removed, particles come together and settle down. Spontaneous destabilization of solution is ageing and destabilization of solution by artificial means is called coagulation (flocculation).
Tyndall effect is light scattering by particles in a colloid or particles in a fine suspension. Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface but paramagnetism is a property of solid.
(d) magnetic property
Explanation:
d) Magnetic property is not shown by the sols. Magnetic property is when materials are attracted by an externally applied magnetic field and from internal induced magnetic fields in the direction of the applied magnetic field.