Sols containing water as dispersion medium are usually called
Hydro sols
Alcohols
Alchosols
Bezosols
Sols consisting of air as dispersion medium are usually known as
Aerosols
Benzosols
Which of the following forms cationic micelles above certain concentration?
Sodium ethyl sulphate
Sodium acetate
Urea
Cetyl trimethyl ammonium bromide
When a large number of atoms or small molecules of a substance combine together in a dispersion medium to form aggregates having size in the colloidal range, the colloidal solutions thus formed are called
Multimolecular colloids
Macromolecular colloids
Associated colloids
Lyophobic colloids
Heterogeneous system having the diameter of dispersed particles lying between 1nm - 100nm is
Suspensions
True solutions
Colloidal solutions
Solvents
The substance which do not possess much affinity for the dispersion medium and do not readily pass into the sol state when mixed with the medium are called
Lyophilic colloids
Hydrophilic colloids
Hydrophobic colloids
Intrinsic colloids
The substance which when mixed with a suitable liquid readily form colloidal solutions are called
The foundation of colloidal chemistry was laid down by
Hund
Thomas Graham
Afbauve
Rutherford
The ability of anion to bring about coagulation of a given colloid depends upon
its charge
the sign of the charge alone
the magnitude of its charge
both magnitude and sign of its charge
According to the adsorption theory of catalysis, the speed of the reaction increases because
absorption produces heat which increases the speed of the reaction
adsorption lowers the activation energy of the reaction
the concentration of reactant molecules at the active centres of the catalyst becomes high due to adsorption
in the process of adsorption, the activation energy of the molecules becomes large
