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CBSE Class 12-science Answered

differentiate between peptisation and coagulation 
Asked by niharikapabba2605 | 07 Aug, 2018, 11:39: AM
answered-by-expert Expert Answer
Peptisation and Coagulation
 

Peptisation

Coagulation

It is the formation of stable colloids in a dispersion medium.

It is the gelling or clumping of the particle.

Electrolyte is added whose one ion in common with one ion of precipitate.

Coagulation is carried out by an electrolyte whose one ion is oppositely charged to one ion of the sol.

The particles of precipitate absorb common ion of the electrolyte.

The particles of the sol take up the ions which are oppositely charged and get neutarlised.

Example: Peptisation of silver iodide using KI solution.

Example: Particles in milk can get coagulated to form yogurt.

Answered by Varsha | 07 Aug, 2018, 03:13: PM
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