Question

The minimum concentration of an electrolyte in millimoles per litre required to cause coagulation of sol is called its​

Answer 1

The minimum concentration of an electrolyte in millimoles per litre required to cause coagulation of a sol in two hours is called coagulating value or precipitation value.

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Answer 2

Answer:

The minimum concentration of an electrolyte in millimoles per litre required to cause coagulation of sol is called its​ coagulation value of electrolyte for solution.

Explanation:

1. Another name of coagulation value is flocculation value or precipitation value.

2. Flocculation value ∝ 1/Coagulating Power

When electrolyte is having more flocculation value it means coagulating power is less.

3. Coagulating behaviour was discovered by Hardy and Schulze.

4. They made two observations :-

(a) Coagulation of solution happens when the ions carry the opposite charge from the solution particles.

(b) Coagulation power of an electrolyte is proportional to the ion's valency causing coagulation.