Which statement most correctly describes crystal field theory for a d block complex of unspecified geometry?
Answers
The theory considers covalent interactions between a metal centre and the surrounding ligands. b. The theory considers electrostatic interactions between a metal ion and the surrounding ligands which are taken to be point charges. C . The theory rationalizes the non -degeneracy of the metal d orbitals by considering repulsions between point charge ligands and electrons in the metal d orbital, d. The theory rationalizes why the metal d orbitals arc split into two levels. 2. Which of the following correctly places the ligands in their order in the spectrochemical series? a. Br < CI < Mb < H2O b. I^- < Br < H2O < [OH]^- c. F^- < CI^- < H2O < NH3 d. I^- < CI < H2O< en 3. Which of the following correctly places the metal centers in order of increasing t t a. Mn(II) < Fe(III) < Rh(III) h. Co(III) < Co(II) < Rh(III) c. Pt(IV)< Pd(11)< Ni(II) d. Pd(II) < Ni(II) < Pt(IV) 4. Which of the following complex ions is tetrahedral? a. [PdCl4]^2- b. [PtCl4]^2- c. {NiCl4]^2- d. (AuC14)^2- 5. Match up the correct formula and magnetic property. Which pair is correct? a. [zn(H2O)6)]^2+; paramagnetic b. [Co(NH3)6]^3+; diamagnetic c. [CoF6]^3-; diamagnetic d. [V(H2O)6]^2+; diamagnetic