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Explain the terms with suitable examples: (i) Alcosol (ii) Aerosol (iii) Hydrosol

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Explain the terms with suitable examples:

(i) Alcosol (ii) Aerosol (iii) Hydrosol

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(i) Alcosol: A colloidal solution having alcohol as the dispersion medium and a solid substance as the dispersed phase is called an alcosol.

For example: colloidal sol of cellulose nitrate in ethyl alcohol is an alcosol.

(ii) Aerosol: A colloidal solution having a gas as the dispersion medium and a solid as the dispersed phase is called an aerosol.

For example: fog

(iii) Hydrosol: A colloidal solution having water as the dispersion medium and a solid as the dispersed phase is called a hydrosol.

For example: starch sol or gold sol

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