Which of the following is the best protective colloid. | CHEMISTRY - COLLOIDS AROUND US | SolveeIt | Solveeit

Today, August 18

Question

Which of the following is the best protective colloid.

A

Gelatin (Gold No. = 0.005)

B

Gum arabic (Gold No. = 0.15)

C

Egg albumin (Gold No. = 0.08)

D

None of these

Answer

Gelatin (Gold No. = 0.005)

Explanation

Solution

Protective power $\propto \frac { 1 } { \text { Gold number } }$

Thus gelatin is the best protective colloid.