試卷名稱:114年 - 114 國立清華大學_學士後醫學系_自然科學組﹕物理化學#126266
年份:114年
科目:學士後西醫物理及化學
21. The molar ratio of Cl⁻, Br⁻, and I in a solution is 2:3:4. Now, if you want to pass Cl2 into the solution so that the molar ratio of Cl⁻, Br⁻, and I in the solution becomes 4:3:2, what is the molar ratio of Cl2 to be added and I in the original solution?
(A) 1:2
(B) 1:3
(C) 1:4
(D) 1:5
(E) 1:6