Chemistry Coordination Compounds

Cr³⁺ion is a most stable in aqueous solution due to. t_2g half filled configuration

H₂S₂O₆

→ Dithionic acid

⇒ There is no S–O–S bond in it.

Acidic nature of hydrides increases down the group in p-block

so H₂Te will be most acidic among given options.

There are three isomers for the complex species [Co (en)₂Br₂]⁺

There are three isomers for the complex species [Co (en)₂Br₂]⁺

A. Vitamin B₁₂– Co

B.  Wilkinson catalyst –Rh ( [Rh (PPh₃)₃Cl])

C.  Ziegler-Natta catalyst –Ti (TiCl₄ +Al (C₂H₅)₃)

D.  Haemoglobin – Fe

From structure it is clear [CO₂ (CO)₂] has bridging carbonyl ligand.

Kindly go through the solution 

Homoleptic complexes in which a metal is bound to only one kind of donor groups/ligands.