I, Suggest suitable compounds or reagents for those missing in the following scheme and calculate the oxidation state of Co and the umber of valence electrons (VE) where necessary Na-Hg Me 3Sici 12 Co2(CO) B THF HCl Me SiH co (-),-VE + CO Co Co (-),-VE Me Me Co (-).⦠VE CO) for the essential organometallic Hint: Refer to hanut '. Type of reactions): rezctice types PMe 3 Regiochemistry of product: Regiochemistry of product: (ct. addition of HBr to 2-methyl propene in oganic chemistry) uestions: a) Suggest values for any non-carbonyl IR bands associated with compound A. b) Suggest a synthetic route to Co (CO)s from cobalt metal. c) Both C and D give the same microanalytical data [%C 41.2; %H 6.1; %P 11.81 Account for this data. [Hint: Account for, means determine the %C, %H, and %P for your proposed structures and hence confirm statement.] Continued..