NEET Chemistry Surface Chemistry Questions Solved

BOARD

Define the following terms:

(i) Sorption

(ii) Tyndall effect

(iii) Electrophoresis

(i) Sorption: It is a physical and chemical process by which one substance

becomes attached to another.

or, In order to distinguish between adsorption and absorption a common term sorption is used.

(ii) Tyndall Effect: When a beam of light is passed through a colloidal solution and viewed

perpendicular to the path of the incident light, the path of light becomes

visible as a bright streak. The illuminated path is called Tyndall effect.

(iii) Electrophoresis: When electric current is passed through a colloidal solution, the positively 

charged particles move towards cathode while negatively charged particles 

move towards anode where they lose their charge and get coagulated.

The phenomenon is known as Electrophoresis.

Difficulty Level:

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