EASY
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Cheese is a type of emulsion.

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Important Questions on Adsorption and Colloids

EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Differentiate between colloidal sol and a gel.
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
The protective power of a lyophilic colloidal sol is expressed in terms of
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Cheese is an example of:
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids

Which of the following will form a reversible sol?

EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids

Match List I with List II :
    List-I                                  List-II

Example of colloids            Classification
(a) Cheese                   (i) dispersion of liquid in liquid
(b) Pumice stone         (ii) dispersion of liquid in gas
(c) Hair cream             (iii) dispersion of gas in solid
(d) Cloud                     (iv) dispersion of liquid in solid

Choose the most appropriate answer from the options given below

EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Write dispersed phase and dispersion medium of dust, a colloidal solution.
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Lyophilic sols are more stable than lyophobic sols because:
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Which of the following about colloids is FALSE?
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
When silver nitrate solution is added to potassium iodide solution then the sol produced is:
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Tyndall effect is more effectively shown by:
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids

Give reasons for the following statement:

Lyophilic sols are called reversible colloids.

EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Which of the following is not a homogeneous mixture?
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids

In following, which is not a Lyophilic Colloid?

MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Fog is an example of colloidal system of
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Explain the following term:
Alcosol
 
HARD
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids

Match List - I with List - II.

  List-I   List-II
A Lyophilic colloid I Liquid-liquid colloid
B Emulsion II Protective colloid
C Positively charged colloid III FeCl3+NaOH
D Negatively charged colloid IV FeCl3+ hot water

Choose the correct answer from the options given below

MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Which of the following is a reversible sol?
MEDIUM
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
Lyophilic sols are more stable than lyophobic sols, because
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
A colloidal system consisting of a gas dispersed in a solid is called a/an:
EASY
Chemistry>Physical Chemistry>Adsorption and Colloids>Colloids
In which of the sols, the colloidal particles are with negative charge?