2015 Hainan Question 6 Single-choice Differentiating 2015_海南卷 (化学) 6.己知在碱性溶液中可发生如下反应:2R(OH)3 + 3C1O- + 4OH- = 2RO 4n-+3Cl- +5H 2O。则RO 4n-中R的化合价是( ) A. +3B. +4C. +5D. +6 Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →