Surface Chemist...

Which gas will be adsorbed on a solid to greater extent.

Which of the following factors affects the adsorption of a gas on solid ?

The volume of gases NH₃, CO₂ and CH₄ adsorbed by one gram of charcoal at 298 K are in

The heat of physisorption lie in the range of

Which of the following is not a gel ?

Which of the following is used to adsorb water

An emulsion is colloidal system of

Which of the following is a lyophobic colloid ?

The nature of bonding forces in adsorption

The Tyndall effect associated with colloidal particles is due to

Which one of the following is not applicable to chemisorption ?

In the colloidal state the particle size ranges

All colloids

Colloids can be purified by

Milk is an example of

Colloidal particles in a sol. can be coagulated by

Fog is a colloidal system of

Given below are a few electrolytes, indicates which one among them will bring about the coagulation of a gold sol. quickest and in the least of concentration ?

When a colloidal solution is observed under ultramicroscope, we can see

Colloidal solution are classified on the basis of

The minimum concentration of an electrolyte required to cause coagulation of a sol. is called

The electrical charge on a colloidal particle is indicated by

Smoke precipitator works on the principle of

Which one of following statement is not correct in respect of lyophilic sols ?

As₂S₃ sol is

Crystalloids differ from colloids mainly in respect of

At the critical micelle concentration (CMC) the surfacent molecules

Alums purify muddy water by

Solute dispersed in ethanol is called

Which one of the following is lyophilic colloid ?