Greater is the protective power of lyophilic colloid

The protective power of lyophilic sol is

The protective power of lyophilic sol is:

Assertion : Lyophilic colloids such as starch, gelatin etc, act as protective colloids. Reason : Protective power of lyophilic coloids is expressed in terms of gold number.

How is the protective power of a lyophilic sol expressed ?

The protecting power of lyophilic colloidal sol is expressed in terms of :

The protecting power of lyophilic colloidal sol is expressed in terms of