Gas mask is used to adsorb poisonous gases since charcoal is a good

during adsorption surface energy is released as

adsorption is a surface phenomena wheras absorption is a  bulk

Adsorption decreases with increase intemperature . because adsorption is an exothermic

emulsions

Electrophoresis

Emulsion

Highly specific

High efficiency

Optimum temperature

Optimum

coagulating power of an ion increases with its

If reactants and catalyst are in the same phase it is known as homogeneous catalysis.

If reactants and catalyst are in different phase it is known as

Lyophobic colloids can be prevented from coagulation by adding lyophilic colloids and these lyophilic colloids are called protective

Micelle formation---explanation

Starch

physisorption            chemisorption

1. Not specific      1. Highly

Colloid which behaves as normal strong electrolyte at lower concentration but exhibits colloidal properties at higher concentration...eg.

The Zig -Zag movement of colloidal particles is known as Brownian

1.Silica gel

2.Alumina

The potential difference between a fixed layer of one of kind of charges and diffused layer of opposite charges around a colloidal

red

presence of similar charge on all particles prevents their aggregation and settling

also due to

fluorescein and eosin

1) The size of the particle should not be much smaller than the wave length of light used

2) There should be a greater difference in the refractive indices

Match the following

             A