5. You isolated two octahedral complexes, [Fe(CN)6]3 and [Fe(Cl)6]3, while working in a lab. Note that CNis a strong field ligand and Clis a weak field ligand. Color of these complexes will be: a. [Fe(CN)6]3 is red and [Fe(Cl)6]3 is violet b. [Fe(CN)6]3 is violet and [Fe(Cl)6]3 is red c. Both will be red d. Both will be violet 6. You isolated two octahedral complexes, [Fe(CN)6]3 and [Fe(Br)6]3, while working in a research company. Find their magnetic properties using crystal field concept. (HINT: 1 CNis a strong field ligand and Br is a weak field ligand). a. [Fe(CN)6]3 is paramagnetic and [Fe(Br)6]3 is diamagnetic b. [Fe(CN)6]3 is diamagnetic and [Fe(Br)6]3isparamagnetic c. [Fe(CN)6]3 is paramagnetic and [Fe(Br)6]3 is paramagnetic d. [Fe(CN)6]3 is diamagnetic and [Fe(Br)6]3isdiamagnetic 7. Find total number of valance electrons around central metal atom/ion. [RhCl2(CO)(PPh 3)2 ]. Include electrons from ligand(s) and metal d orbital. a. 15 b. 16 c. 17 d. 18 8. What is the oxidation state of Fe in [FeBr3(CN)2(PPh3)2] ? a. +1 b. +2 c. +3 d. +4 e. +5