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NTA Abhyas JEE Main2020ChemistrySurface ChemistryPractice

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 ?

Options

  1. AA
  2. BB
  3. CC
  4. DD

Correct answer

B. B

Step-by-step solution

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

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