Explain Colloidal solution with an example . Please tell me fast
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A colloid is an example of a homogeneous mixture. A colloid has a uniform composition with large particles that do not settle out of solution. And it’s example is MILK
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Answer :
To know what are collidal solutions, we must know the term 'Colloids'
Colloids - A colloid or colloidal system is a heterogeneous Mixture in which one substance is dispersed as very fine particles, having size in the range of 1 to 100 nm, in a continuous medium of another substances.
Now,
COLLOIDAL SOLUTION OR SOLS -
Colloidal solution or sols are of two types :
1. Lyophilic sols : The word 'lyophilic' means solvent loving. Substances like gum, starch, gelatin, etc., when mixed with a suitable solvent like warm water, readily form a colloidal soution. The colloidal solution thus obtained is called lyophilic or hydrophilic sol.
2. Lyophobic sols : The word 'lyophobic' means solvent hating. Metals, their oxides and sulphides, etc., when simply mixed with the dispersion medium, say water, do not form a colloidal solution. Special methods are to be employed to prepare colloidal solutions of these substances. The sols of these substances thus obtained are called lyophobic or hydrophobic sols.
CHARACTERISTICS OF COLLOIDAL SOLUTION --
1. Colloidal solution or sols apparently appear to be homogeneous but they are actually heterogeneous in character.
2. The size of colloidal particles range from 1 nm to 10 nm.
3. The colloidal particles are not visible to the naked eyes but due to scattering of light by them, can be viewed under ultra microscope
4. Colloids show tyndall effect.
5. The particles of colloidal solution do not settle down.
HOPE IT WOULD HELP YOU
To know what are collidal solutions, we must know the term 'Colloids'
Colloids - A colloid or colloidal system is a heterogeneous Mixture in which one substance is dispersed as very fine particles, having size in the range of 1 to 100 nm, in a continuous medium of another substances.
Now,
COLLOIDAL SOLUTION OR SOLS -
Colloidal solution or sols are of two types :
1. Lyophilic sols : The word 'lyophilic' means solvent loving. Substances like gum, starch, gelatin, etc., when mixed with a suitable solvent like warm water, readily form a colloidal soution. The colloidal solution thus obtained is called lyophilic or hydrophilic sol.
2. Lyophobic sols : The word 'lyophobic' means solvent hating. Metals, their oxides and sulphides, etc., when simply mixed with the dispersion medium, say water, do not form a colloidal solution. Special methods are to be employed to prepare colloidal solutions of these substances. The sols of these substances thus obtained are called lyophobic or hydrophobic sols.
CHARACTERISTICS OF COLLOIDAL SOLUTION --
1. Colloidal solution or sols apparently appear to be homogeneous but they are actually heterogeneous in character.
2. The size of colloidal particles range from 1 nm to 10 nm.
3. The colloidal particles are not visible to the naked eyes but due to scattering of light by them, can be viewed under ultra microscope
4. Colloids show tyndall effect.
5. The particles of colloidal solution do not settle down.
HOPE IT WOULD HELP YOU
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