Q. Gold number of few colloids are given below, Gelatin = 0.005 Starch = 25 Egg albumin = 0.08 Gum Arabic = 0.10 Which is best protective colloid?
A) Gelatin
B) Starch
C) Egg albumin
D) Gum arabic
Explanation
(a)
Lower is the value of gold number, more is its protecting power.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.