1. The complex ion [Co(NH3)6]3+ is orange, whereas [Co(NH3)5Cl]+ is violet. What calor would you predict for the complex [Co(NH3)s(H2O)]3+? Why? 2. Consider the isoelectronic complex ions [MnO4]3, (FeO4]2, and [CrO4]+. They show strong charge-transfer transitions at 233, 303, and 476 nm. Assign each transition to the corresponding complex. Would you expect the energy of ligand to metal charge- transfer bands to increase or decrease with increasing charge on the complex? Explain in details.