T is a transition metal that forms ions with different charges. One chloride of T has the formula TCl3\mathrm{TCl_{3}}TCl3.
The chloride ion is Cl−\mathrm{Cl^{-}}Cl− and the oxide ion is O2−\mathrm{O^{2-}}O2−.
Deduce the formula of the oxide of T that contains the same T ion as TCl3\mathrm{TCl_{3}}TCl3.
113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.