Question

What happens when a freshly prepared precipitate of fe(oh)3 is shaken with a small amount of fecl3 solution?

Answer 1

Peptization takes place forming a positively charged colloidal sol of Fe(OH)3
Peptization is a process of passing of a precipitate into colloidal particles on adding suitable electrolyte. The electrolyte added is known as peptizing agent. A few examples of sols obtained by peptization are given below:

A reddish brown colored colloidal solution is obtained by adding small quantity of ferric chloride solution to the freshly precipitated ferric hydroxide.

Answer 2

Here is your answer dear ,

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when the ferrous chloride is added to the ferrous hydroxide , then the peptization takes place .

Peptization is a process of adding an insoluble precipitate ( FeCl³ in this case )in a colloidal substance ( Fe(OH)³ is a colloidal substance ) .

This process is done with the help of an electrolyte , which is known as peptizing agent.

Thus , when the Precipitate of FeCl³ is added to reddish - brown colloidal solution of Fe(OH)³ , then this reaction takes place .

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