In which of the following species is the transition metal in its highest possible oxidation state?
manganese in MnO2\text{MnO}_2MnO2
vanadium in [VO2]+[\text{VO}_2]^+[VO2]+
titanium in [Ti(H2O)6]3+[\text{Ti}(\text{H}_2\text{O})_6]^{3+}[Ti(H2O)6]3+
chromium in CrCl3\text{CrCl}_3CrCl3
63 exam-style questions on AQA A Level Chemistry Transition metals (A-level only), covering General properties of transition metals (A-level only), Substitution reactions (A-level only), Shapes of complex ions (A-level only), Formation of coloured ions (A-level only), Variable oxidation states (A-level only), and Catalysts (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.