Which of all polydentate ligands given in list including tridendate,tetradentate,penta and hexa needs to be studied ?
See NCERT for that
Do we need to to learn all structures given in this list of chelating ligands
You do not need to learn the structures of all the ligands. You may learn the denticity, hapticity (if applicable) and donor atoms (and, if a chiral carbon is present in the ligand). This will help in telling SFL and WFL. So, in all, no need to learn the structures.
As for chelating ligands, all polydentate ligand which can form ring without angle strain will be chelating.
What is the coordination compound having prussian blue colour ?
Also turnbull's blue also converts to prussian blue, so that can also be considered.
In these cationic and anionic ions complexes how to find oxidation state respectively in cationic and anionic part of central atom ? Please explain it.
Ir+3 has common co-ordination number of 6. So, the complex formed would be [Ir(NH3)_5Br]Br_2 so there will be 0.002 mole of Br^- ions (as only two are ionisable, which are outside the co-ordination sphere). Since AgNO3 is in excess, all Br^- will ppt. as AgBr.
We have to remember certain O.S. of cations, like which O.S. will have which co-ordination number. Like Pt+2 forms complexes with CN = 4, Pt+4 forms with CH = 6 etc.
Mainly we have to learn the common O.S.s of cations and the CN of their complexes in that O.S.
Van't hoff factor nikal lo saare compounds ka 100% dissociation maan kar, then
delta T_f = iK_fm laga do. Jiska i jyada, uska delta T_f jyada and freezing point kam.
In illustration 14 how did from beginning they know EAN of following compounds to calculate x as it's not given in question
They have calculated just they didn't show that step
According to EAN rule
The total electrons present to the central atom of an entity will be equal to nearest inert gas (Carbonyl complex follow this rule strictly)