9 & 19. Redox processes (2)
For each question choose the answer you consider to be the best.1. In which species does manganese have an oxidation state of +3? A. MnSO4B. KMnO4C. Mn2O3D. MnO22. What change occurs to vanadium during the conversion of VO3−(aq) to VO2+? A. It undergoes reduction and its oxidation state changes from + 5 to +4B. It undergoes reduction and its oxidation state changes from +3 to +2