More is the coagulation value of electrolyte, its coagulation power is ________ .
1. more
2. less
3. unchanged
4. none of the above

Choose the correct answer.

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Solution

The minimum concentration of electrolyte in millimoles required to cause coagulation of one litre of colloidal solution is called coagulation value.

It needs to be noted that the coagulation of a colloidal solution by an electrolyte does not take place until the added electrolyte has certain minimum concentration in the solution.

Coagulation power is inversely proportional to coagulation value.

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