NEET Chemistry Surface Chemistry Questions Solved

BOARD

(a) In reference to Freundlich adsorption isotherm write the expression for 

adsorption of gasses on solids in the form of an equation.

(b) Write an important characteristic of lyophilic sols.

(c) Based on type of particles of dispersed phase, give

one example each of associated colloid and multimolecular 

colloid.

(a) The equation representing adsorption of gases on solids is 

xm=KP1/n

Where x/m= amount of gas adsorbed per unit mass of adsorbent     K= Constant                      n= Positive integer

(b) Lyophilic sols are reversible and self stable.

(c) Associated colloid:      Soap sol

    Multimolecular colloid:  Gold sol

Difficulty Level:

  • 75%
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