1.8. with pi bonding. Draw a fully labelled molecular orbital diagram of the complex [Mn(CN)6]³- [15] (i) What is the total number of molecular orbitals for the complex ion. (ii) If CN is replaced with Br, would you expect Ao to increase or decrease, briefly explain your answer. [1] [3]

Four different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?

What is the coordination number of the central metal atom in the following complexes? (a) [Fe(H2O)63+] (b) [Pt(NH3)Br3] (c) [V(en)Cl42] (d) [Au(CN)2+]

Is it possible for a complex of a metal in the transition series to have six unpaired electrons? Explain.