Question

Characteristics of multimolecular colloids

Answer 1



 

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Classification of Colloids

Classification of Colloids

 

Table of Content

Classification of colloids based on nature of interaction between dispersed phase and dispersion medium

Classification of Colloids Based on Type of Particles of the Dispersed Phase

Micelle Formation in Soap Solutions

Related Resources


Classification of colloids based on Physical state

Dispersed Phase

Dispersion Medium

Name

Typical example

Solid

Liquid

Sol

Gold sol, Mud, Fe(OH)3 sol,

Solid

Solid

Solid sol

Gems, Ruby glass, Minerals 

Solid

Gas

Aero sols

Smoke (Carbon in air) Volcanic dust

Liquid

Solid

Gel

Curd, Cheese, Jellies

Liquid

Liquid

Emulsion

Milk, water in benzene, cream

Liquid

Gas

Liquid aero sol

Clouds, fog (water in air) mist

Gas

Solid

Solid foam

Lava, Pumica

Gas

Liq

Answer 2

Explanation:

Answer:

1. They are formed by the aggregate of a large number of atoms or molecules which generally have diameters less than 1 nm, e.g., sols of gold, sulphur etc.

2. Lyophobic sols: These sols are usually formed by the inorganic materials like metals, their sulphides etc.They are irreversible in nature i.e. once precipitated cannot return the colloidal sol by simply addition of the dispersion medium.

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