Qualitative analysis of cations and anions - OCR A level Chemistry

d-block elements / transition metals-properties -OCR A level

Student workbooks and teacher PPs for about 10 lessons (depending on time available) to cover the concepts of Chapter 24 Transition metals of OCR A Level chemistry. The following concepts are being covered: 1. The d-block elements and their electronic configuration. 2. Properties of transition metals and their compounds e.g., variable oxidation states, catalytic properties. 3. Formation of complex ions; types of ligands. 4. Shapes of complex ions. 5. Stereoisomerism in complexes -types and conditions a) Cis-trans isomerism b) Optical isomerism 6. Precipitation reactions of transition metal ions with aqueous sodium hydroxide and aqueous ammonia. 7. Ligand substitution reactions of copper (II) complexes and chromium (III) complexes. 8. Using electrode potential to explain Redox reactions involving transition metals ions. 9. Qualitative analysis -review from Y1 a) Identifying transition metal ions and ammonium ions b) Identifying negative ions (anions); carbonate, sulphate (VI), halide ions c) The correct sequence of tests needed to be carried out to identify anions if the tests are carried out on the same solution. The workbooks are for the students to complete. They contain various activities to achieve the learning outcomes for Transition metals and give opportunities for challenge and stretch. Teacher PPs support the workbooks- and contain support / answers to the tasks. The answers, in most cases, are revealed showing the solutions to tasks in steps.