The gold numbers of A, B, C and D are 0.04, 0.002, 10 and 25, respectively. The protective powers of — Surface Chemistry Chemistry Question
Question
The gold numbers of A, B, C and D are 0.04, 0.002, 10 and 25, respectively. The protective powers of A, B, C and D, respectively, are in the order
Answer: B
💡 Solution & Explanation
Protective power is inversely proportional to the gold number. Since the gold number order is B < A < C < D, protective power order is B > A > C > D. Therefore, correct answer is B.
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