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試卷名稱：112年 - 112 國立中山大學_碩士班暨碩士在職專班招生考試_化學系：物理化學及分析化學#126324
年份：112年
科目：研究所、轉學考(插大)◆物理化學及分析化學
40Coulometry is a chemical analysis based on counting the electrons used in a reaction. What is (are) the correct statement about coulometric titration?
(i) The advantages of coulometry include precision, sensitivity, and generation of stable reagents in situ.
(ii) Cyclohexane can be titrated with Br2 generated by electrolytic reduction of Br¯.
(iii) Constant-current coulometry is performed using double Pt-wire electrodes.
(iv) Controlled-potential coulometry in a three-electrode electrode cell is more selective than constant- current coulometry.
(A) i, ii
(B) iii, iv
(C) i, ii, iii
(D) i, iii, iv
(E) i, ii, iii, iv
