On adding few drops of dilute \[HCl\] or \[FeC{{l}_{3}}\] to freshly precipitated ferric hydroxide a red coloured colloidal solution is obtained. The phenomenon is known as [NCERT 1981; AFMC 1982; MP PMT 1989, 97]

On adding few drops of dilute \[HCl\] or \[FeC{{l}_{3}}\] to freshly p

1.	On adding few drops of dilute \[HCl\] or \[FeC{{l}_{3}}\] to freshly precipitated ferric hydroxide a red coloured colloidal solution is obtained. The phenomenon is known as [NCERT 1981; AFMC 1982; MP PMT 1989, 97]
A.	Peptisation
B.	Dialysis
C.	Protective action
D.	Dissolution
Answer» B. Dialysis

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On adding few drops of dilute \[HCl\] or \[FeC{{l}_{3}}\] to freshly precipitated ferric hydroxide a red coloured colloidal solution is obtained. The phenomenon is known as [NCERT 1981; AFMC 1982; MP PMT 1989, 97]

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