QUESTION THREE (1) Give the oxidation state and electron configuration of the transition element in each of the following complexes:- Ks [Colox)s). [Co(en)JBrS [2 marks] (b) One of the above complexes is high-spin and the other complex is low-spin. Say which complex is high-spin and which is low-spin, explaining your choice in each case. Draw the crystal field splitting diagram for each complex, showing the arrangement of the electrons. 14 marks] (c) Using the appropriate crystal field splitting diagram, calculate the crystal field stabilisation energy (CFSE) for each of the above complexes. From your answer or otherwise, predict which of the ions (Cocox)] or [Co(en)s]" has the smaller ionic size. 14 marks) Note: en is 1.2-diaminoethane, H2NCH:CH2NH2 ox is the dianion of (COOH). oxalic acid (structure below) HO OH axalic acid Why does boron trichloride react with water whereas sulfur hexachloride does not? Use illustrations and explain fully what you understand to occur. [4 marks) (iii) Discuss, with specific examples, the interhalogen compounds of fluorine. [6 marks]