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The ability of ion to bring about coagul...

The ability of ion to bring about coagulation of a given collidal solution depends upon

A

Its size

B

The magnitude of its charge only

C

The sign of its charge

D

Both the magnitude and the sign of its charge

Text Solution

Verified by Experts

The correct Answer is:
D
The ability of an ion to bring about coagulation of a given colloids depends upon both the magnitudes and sign of its charges.
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coagultion is the process by which the dispersed phase of a colloid is made to aggregate and thereby separtate from the continuous phase. The minimum concetration of an eletrolyte in milli-moles per litre of the electrolyte solution which required to cause the caogultion of colloidal sol is called coagution value . therefroe higher is the coagulatings power of effective ion, smaller will be the coagultion value of the electrolyte. the ability of an ion to bring about coagulation of a given colloid depends upon :