Have an account?
Skip to Content
15 questions
Show Answers
See Preview
- Fill in the BlankPlease save your changes before editing any questions.
What kind of process is adsorption?
- Multiple ChoicePlease save your changes before editing any questions.
Entropy during adsorption ...........
Decreases
Increases
Remain Same
Cannot say
- Multiple ChoicePlease save your changes before editing any questions.
Peptisation is a process of
Precipitation of colloid
Dispersion of precipitate
purification of colloids
Movement of colloid under electric potential
- Fill in the BlankPlease save your changes before editing any questions.
The difference in potential of fixed and mobile layer is called ..........
- Multiple ChoicePlease save your changes before editing any questions.
Extent of physisorption increases with
decrease in surface area
increase in temperature
decrease in temperature
decrease in strength of van der waal forces
- Multiple ChoicePlease save your changes before editing any questions.
In physisorption adsorbent does not show specificity for any particular gas because ______________.
involved van der Waals forces are universal
it is a reversible process
Enthalpy is low
Gases behave as ideal gases
- Multiple ChoicePlease save your changes before editing any questions.
At high concentration of soap in water, soap behaves as
multimolecular colloid
macromolecular colloid
associated colloid
Solution
- Multiple ChoicePlease save your changes before editing any questions.
The minimum temperature required for formation of associated colloid is called...........
Critical temperature
Inversion temperature
Kraft temperature
Boyle's temperature
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following electrolytes will have maximum coagulating value for AgI/Ag+ sol? (AgI/Ag+ implies positive sol)
NaCl
- Multiple ChoicePlease save your changes before editing any questions.
Which of the following ion will have highest coagulating power for coagulating a negatively charged sol?
- Multiple ChoicePlease save your changes before editing any questions.
If the dispersed phase is a liquid and the dispersion medium is solid, the colloid is known as
Emulsion
Solid Sol
Gel
Sol
- Multiple ChoicePlease save your changes before editing any questions.
The movement of colloidal particles towards the oppositely charged electrodes on passing electric current is known as
Tyndall Effect
Brownian Motion
Electrophoresis
Coagulation
- Multiple ChoicePlease save your changes before editing any questions.
The process of settling of colloidal particle is called....
Peptization
Caogulation
Dialysis
Emulsification
- Multiple ChoicePlease save your changes before editing any questions.
It is a process of removing a dissolved substance from a colloidal solution by means of diffusion through a suitable membrane
Electrophoresis
Dialysis
Precipitation
Peptization
- Multiple ChoicePlease save your changes before editing any questions.
Which is not true for chemisorption?
It involves high activation energy
It is highly specific
It involves chemical bond formation
It is reversible