Question

More is the coagulation value of electrolyte; its coagulation power is ____
1.More
2.Less
3.Unchanged
4.None of the above.

Answer 1

Hint: The precipitation of colloidal solution through induced aggregation by the addition of suitable electrolyte is called coagulation or flocculation.

Complete answer:
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 a certain minimum concentration in the solution.
Coagulation power is inversely proportional to coagulation value.
Hence the option 2 is correct.

Note: An electrolyte is a substance that produces an electrically conducting solution when dissolved in a polar solvent, such as water. The dissolved electrolyte separates into cations and anions, which disperse uniformly through the solvent. Electrically, such a solution is neutral.