JEE Main & Advanced
JEE Main Paper (Held On 10 April 2016)
question_answer
Gold numbers of some colloids are : Gelatin : 0.005 - 0.01, Gum Arabic : 0.15 - 0.25 ; Ole ate : 0.04 - 1.0 ; Starch : 15 - 25. Which among these is a better protective colloid ?
JEE Main Online Paper (Held On 10 April 2016)
A)Gelatin
B)Starch
C)Gum Arabic
D)Ole ate
Correct Answer:
A
Solution :
Lower the gold number, more will be protective power of colloid.