NEET Chemistry Surface Chemistry Questions Solved

BOARD

Define the following terms:

(i) Adsorption

(ii) Peptization

(iii) Sol

(i) Adsorption: It is a surface phenomenon which ocurrs only at the

surface of the adsorbent.

(ii) Peptization: It is a process of converting a fresh presh precipitate 

into colloidal particles by shaking it with the dispersion medium in the 

presence of a small amount of a suitable electrolyte.

(iii) Sol: The colloids in which a solid is dispersed in the liquid.

or, In a colloidal sol, the dispersed phase is a solid and the 

dispersion medium is a liquid.

Difficulty Level:

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