The method usually employed for the precipitation of a colloidal solution is
Dialysis
Addition of electrolytes
Diffusion through animal membrane
Condensation
The variation in the amount of gas adsorbed by the adsorbent with pressure at constant temperature can be expressed by means of a curve known as ____________.
adsorption isotherm
adsorption isobar
adsorption isotones
Isoelectric
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
The material on the surface of which the adsorption takes place is known as ____________
adsorbate
absorbate
adsorbent
absorbent
Physical adsorption of a gas by a solid is generally _____________
Reversible
Irreversible
Permanent
Stable
The extent of adsorption increases with the increase of __________of the adsorbent.
Pressure
temperature
surface area
quantity
For adsorption of a gas on a solid, the plot of log x/m vs log p is linear with slope equal to (n being a whole number)
k
log k
n
1/n
Which is not correct regarding the adsorption of a gas on surface of solid?
On increasing temperature adsorption increases continuously
Enthalpy and entropy change is negative
Distributed all over the surface
Present in the surface only
_____________arises due to the fact that the surface particles of the adsorbent are not in the same environment as the particles inside the bulk.
Absorption
Adsorption
desorption
Sorption
The ability of anion to bring about coagulation of a given colloid depends upon
Its charge
Th sign of the charge alone
The magnitude of its of its charge
Both magnitude and sign of its charge
