Q. The gold numbers of a few protective colloids are
(A) Starch $=25$
(B) Gelatin $=0.005-0.01$
(C) Hemoglobin $=0.03$
(D) Dextrin $=6-123$.
Which is the best protective colloid?

NTA AbhyasNTA Abhyas 2022 Report Error

A

A

B

B

C

C

D

D

Solution:

Smaller the gold number, greater will be its protecting power.

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