1.

What is the significance of 'Gold number"?

Answer»

It measures the stability of colloidal system.
It measures the PROTECTIVE power of a colloid.
It measures the size of colloidal particles.
All of these

Solution :Protective power of LYOPHILIC colloids is measured in terms of .gold number.. It is defined as the number of MILLIGRAMS of a lyophilic colloid that will just prevent the precipitation of 10 mL of a gold sol on the addition of 1 mL of 10% sodium chloride solution.


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