the protective power of the lyophilic colloids es expressed in terms of gold number, a term introduced by Zsigmondy. Gold number is the number of milli - gram of the protective colloid which prevent the coagulation of 10 mLof red gold sol , when 1 mL of a 10 per cent solution of sodium chloride is added to it . thus smaller the gold number of lyophillic colloid, the greater is the protective power.
which of the following statement (S) is / are correct?
A. higher the gold number, more protective power of colloid
B. Lower the gold number, more protective power
C. Higher the coagulation value, more the coagulation power
D. lower the coagulation value, higher the coagulation power
