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 ∝ gold number. Gold numbers: B (0.002) < A (0.04) < C (10) < D (25) => protective power: B > A > C > D.
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