Question

The gold number range of some of the lyophilic colloids is given below: 
A: 0.005 - 0.01,  B: 0.15 - 0.25,  C: 0.04 - 1.0,  D: 15 - 25.

• A. A
• B. B
• C. C
• D. D

Hint:

Lyophilic colloids with lower gold numbers have greater protective power and are more effective in stabilizing the dispersed phase.

Answer 1

The Correct Option is D

The gold number quantifies the protective efficacy of colloids. A reduced gold number signifies superior protection against gold coagulation, indicating a more effective colloid. Conversely, higher gold numbers are associated with less protective colloids. Specifically, a lower gold number denotes better protection (e.g., colloid A exhibits the highest protective power), while higher values indicate lower protective power (e.g., colloid D possesses the least protective power).