37. Primary and secondary valency of Pt in [Pt(en)2Cl2] are
A) 4, 4 B) 4, 6 C) 6, 4 D) 2, 6 E) 3, 6
38. The name of complex [Fe(CN)6]3- is
A) Tricyanido ferrate (III) ion B) Hexacyanido ferrate (III) ion
C) Hexacyanido iron (III) D) Hexacyanido ferrate (II) ion
39. Crystal Field Theory, which one of the following statements is FALSE?
A) In an octahedral crystal field, the d electrons on a metal ion occupy the eg set of orbitals before they occupy the t2g set of orbitals.
B) Diamagnetic metal ions cannot have an odd number of electrons.
C) Low spin complexes can be paramagnetic.
D) In high spin octahedral complexes, oct is less than the electron pairing energy, and is relatively very small.
E) Low spin complexes contain strong field ligands.
40. Crystal Field Theory, consider the complex ion [Mn(H2O)6]2+. Which response includes all the following statements that are true, and no false statements?
I. It is diamagnetic.
II. It is a low spin complex.
III. The metal ion is a d5 ion.
IV. The ligands are weak field ligands.
V. It is octahedral.
A) I, II B) III, IV C) I, IV D) II, V E) III, IV, V