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Colloidal Solutions

What happens ...

Question

What happens when
(a) a freshly prepared precipitate of $F e (O H)_{3}$ is shaken with a small amount of $F e C l_{3}$ solution?

(b) persistent dialysis of a colloidal solution is carried out?

(c) an emulsion is centrifuged?

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Solution

(a) Peptisation takes place and colloidal solution of $F e (O H)_{3}$ is formed

(b) Coagulation takes place

(c) De-emulsification takes place

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