Four distinct lyophilic protective colloids (A, B, C, and D) possess Gold Numbers of , , , and respe — Surface Chemistry Chemistry Question
Question
Four distinct lyophilic protective colloids (A, B, C, and D) possess Gold Numbers of $0.50$, $0.01$, $0.10$, and $0.005$ respectively. Identify the strictly correct sequence of their absolute protective powers from lowest to highest.
Answer: A
💡 Solution & Explanation
The protective power of a lyophilic colloid is mathematically inversely proportional to its Gold Number. A smaller gold number indicates a highly superior protective agent. Ordering by decreasing gold numbers (lowest power to highest) gives: $A (0.50) < C (0.10) < B (0.01) < D (0.005)$.
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