it's urgent , can someone please help me

QUESTION 1 ORGANOMETALLIC CHEMISTRY [23] 1.1 Define the term hapticity (n) (2) 1.2 Give the IUPAC namesimolecular formular of the following organometallic complexes. (a) Dicarbonylchlorobis (triphenylphosphine iridium(i). (b) [Cr(H20) Cla] 1.3 Predict the stability of the following complexes, by counting the number of electrons (show all electrons calculations) using the indicated method. (a) [Mo(CO):Br] (Donor pair method) (3) (b) [Crin-CHS)(n-Cehe) ( (3) 1.4 Determine the electron count, stability and the coordination number of Fe metal in the following complex. (CO)3Fe -Fe(CO)3 1.5 Study the following metal carbonyl complexes indicated below: [Fe(CO)]2.[Coco)]: [Ni(CO).] Predict which complex will have the highest IR carbonyl stretching frequency and explain your reasoning. 1.6 Write down 16e- rhodium complex with one chlorine, one carbonyl and two triphenylphosphine ligands. Determine the oxidation state of Rhodium metal. (3)