Choose the accurate statement from the options given below.

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The charge on colloidal particles can be determined through the use of dialysis.

A solution of a soap with a concentration of $10^{- 4}$ M will exhibit colloidal properties if the critical micelle concentration (CMC) is $10^{- 3}$ M.

The addition of an oil-soluble dye to a water-in-oil emulsion results in a coloured background.

Peptization refers to the transformation of a colloidal sol into a precipitate by adding requisite amount of electrolyte.

answer is C.

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Detailed Solution

A) The charge on colloidal particles can be determined through the use of electroosmosis
B) A solution of this soap with a concentration of $10^{- 4}$ M will exhibit properties of true electrolyte if the critical micelle concentration (CMC) is $10^{- 3}$ .
C) The addition of an oil-soluble dye to a water-in-oil emulsion result in a colored background.
D) Peptization refers to the transformation of a precipitate into a colloidal sol by introducing an electrolyte.

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