JEE Main 201610 Apr, Morning shiftChemistryMediumSurface Chemistry63× since 2002
Gold numbers of some colloids are : Gelatin : 0.005 - 0.01, Gum Arabic : 0.15 - 0.25; Oleate : 0.04 - 1.0; Starch : 15 - 25. Which among these is a
better protective colloid ?