__________isotherm explains the behaviour of adsorption in an approximate manner.
Ostwald
Langmuir
Freundlich
Rutherford
Smoke is an example of ___________
Solid sol
Aerosol
Emulsion
Foam
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 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
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 .
_____________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
___________are complex nitrogenous organic compounds which are produced by living plants and animals.
Catalysts
enzymes
hormones
serum
Which of the following forms cationic micelles above certain concentration?
Sodium ethyl suhphate
Sodium acetate
Urea
Cetyl trimethyl ammonium bromide
An important Zeolite catalyst used in petroleum industry is ______________
ZSM-1
ZSM-3
ZSM-0
ZSM-5
The process of removing an adsorbed substance from a surface on which it is adsorbed is known as _____________
adsorption
absorption
adhesion
