Give any two differences between lyophilic and lyophobic colloids.

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Solution

S. No. Lyophilic colloids
Lyophobic colloids
$1$ Disperse phase has high affinity for dispersion medium Disperse phase has low affinity for dispersion medium.
$2$ They are easily formed by direct mixing or on heating. They cannot be prepared directly. They can be prepared by special methods.
$3$ They are reversible in nature. They are irreversible in nature.
$4$ They are quite stable and are not easily coagulated. They are unstable and are easily coagulated by adding a small amount of suitable electrolyte.

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Explain the terms in detail : Lyophillic colliods and Lyophobic colloids.

Give a brief set of difference between them.

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S. No.	Lyophilic colloids	Lyophobic colloids
$1$	Disperse phase has high affinity for dispersion medium	Disperse phase has low affinity for dispersion medium.
$2$	They are easily formed by direct mixing or on heating.	They cannot be prepared directly. They can be prepared by special methods.
$3$	They are reversible in nature.	They are irreversible in nature.
$4$	They are quite stable and are not easily coagulated.	They are unstable and are easily coagulated by adding a small amount of suitable electrolyte.