Complex or Compound K₂[CoC14] Name Metal Metal d Charge electrons Molecular Geometry Obeys 18- electron rule?

Dear Hand written not allowed.

Which of the following describe the following complex ion? {FeSCN} Cl2 Fe is the metal through which ligand(s) is/are bound None of these answers are correct The charge on the complex ion is +3 Chlorine is the metal through which ligand(s) is/are bound The nitrogen is donating the electron(s) for the coordinate covalent bond The sulfur is donating the electron(s) for the coordinate covalent bond

For the following complex, give the electron count and oxidation state for the metal, include all the steps (MLIXxZz, VN, LBN, EN, dh, OS). H- H COI CO Cr CO CO

Which statements are true regarding ligands? Select all that apply. Ligands donate all electrons involved in bonds they form with metal cations. Ligands are electron pair acceptors in coordination complexes. Ligands act as Lewis bases in coordination complexes. Ligands form ionic bonds with transition metals. All ligands with two lone pairs are bidentate. A ligand that can donate more than one electron pair to a metal cation is called a chelate. One ligand can donate only one lone pair to a metal cation.

You are comparing two coordination complexes that have the same molecular shape and central metal cation. Complex A has only chloride ligands and Complex B had only CO ligands. Which statements are true regarding the complexes? Select all that apply. Complex A has the smaller crystal field splitting. Light of higher frequency is required to promote an electron from the lower to the higher d orbitals in complex A relative to complex B. The light emitted as a photon is released to relax an electron from higher to lower energy d orbitals has a longer wavelength for complex A. Light of higher frequency is required to promote an electron from the lower to the higher d orbitals in complex B relative to complex A. The light emitted as a photon is released to relax an electron from higher to lower energy d orbitals has a longer wavelength for complex B. Complex B has the smaller crystal field splitting.

The color for each “hexaaqua” complex is given below. Select the ligands thatcould change the color of the complex to the color in column 2.Hint: The spectrochemical Series will come in handy here.I− < Br− < Cl− < F− < OH− < H2O < SCN− < NH3 < en < NO2− < CN− < CO