Q. Gold number is the index for :
A) Protective power of lyophilic colloid
B) Purity of gold
C) Metallic gold
D) Electroplated gold
Explanation
(a)
It is an scale to represent protective power of lyophilic sols.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.