At the critical micelle concentration (CMC) the surfactant molecules
Decompose
Dissociate
Associate
Become completely soluble
If accumulation of gas on the surface of a solid occurs on account of weak van der Waal's forces,the adsorption is termed as ___________
Physisorption
Chemisorption
desorption
Sorption
The Langmuir adsorption isotherm is deduced by using the asumption that ____________ .
the adsorption takes place in multilayers
the adsorption sites are equivalent in their ability to absorb the particles
the heat of adsorption varies with coverage
the adsorbed molecules varies with each other .
The material on the surface of which the adsorption takes place is known as ____________
adsorbate
absorbate
adsorbent
absorbent
The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as ___________.
absorption
adsorption
adhesion
During dialysis
Only solvent molecules can diffuse
Solvent molecules, ions and colloidal particles can diffuse
All kinds of particles can diffuse through the semipermeable membrane
If a beam of light is passed through true solution, then it is
visible
scatter
not visible
none of these
The molecular species or substance,which concentrates or accumulates at the surface is termed as ________
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 of its charge
Both magnitude and sign of its charge
The method usually employed for the precipitation of a colloidal solution is
Dialysis
Addition of electrolytes
Diffusion through animal membrane
Condensation
