NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- Surface Chemistry
NTA Abhyas 2020 · Chemistry · Surface Chemistry
The gold numbers of a few protective colloids are (A) Starch = 25...
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 ?
(A) Starch = 25
(B) Gelatin = 0.005 - 0.01
(C) Hemoglobin = 0.03
(D) Dextrin = 6 - 123.
Which is the best protective colloid ?
Options
- AA
- BB
- CC
- DD
Correct answer
B. B
Step-by-step solution
Smaller the gold number, greater will be its protecting power.