The electron configuration for Mn²⁺ is

• [Ar] 4s² 4p⁵

• [Ar] 4s⁰ 3d⁵

• [Ar] 4s⁰ 3p⁵

• [Ar] 3s² 3d⁵

What is the electron configuration of Cu?

• [Ar] 4s² 3d⁹

• [Ar] 4s² 3d¹⁰

• [Ar] 4s¹ 3d⁹

• [Ar] 4s¹ 3d¹⁰

Which of the following is a hexadentate ligand?

• EDTA^4-

• Oxalate ion

• Ethylenediamine (en)

• Ammonia

What is the coordination number (CN) and oxidation number (ON) of the metal ion in [Fe(CN)₆]^3-?

• CN=3; ON=-3

• CN=-3; ON=+3

• CN=6; ON=-3

• CN=6; ON=+3

What is the correct orbital diagram for [Fe(H₂O)₆]²⁺?

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• 
• 
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Which statement best represents the ligand in the metal complex [Fe(CN)₆]^3-?

• Strong field

• Weak field

• Long field

• Short field

In Crystal Field Theory, which of the following statements is true for a central transition metal ion in an octahedral ligand field?

• dxy, dxz, and dyz valence orbitals point toward the ligands and are raised to a higher energy level

• dz² and dx²- y² valence orbitals point toward the ligands and are raised to a higher energy level

• dz² and dx²- y² valence orbitals point between the ligands and are raised to a higher energy level

• The dxy, dxz, and dyz valence orbitals are higher in energy than the dz² and dx²y² valence orbitals

Which of the following square-planar complexes can have cis-trans isomers?

• [Pt(NH₃)₄]²⁺

• [Ni(NH₃)₄]²⁺

• [Pt(NH₃)₂Cl₂]

• [Pt(NH₃)Cl₃]^-

FeCl₈ is likely to absorb what wavelength of light and why?

• Short wavelengths, because it is high spin

• Long wavelengths, because it is low spin

• Short wavelengths, because it is low spin

• Long wavelengths, because it is high spin

Which coordination number (CN) and oxidation number (ON) represent the metal complex [Ni(NH₃)₆]Br₂?

• CN=6; ON=+2

• CN=6; ON=-2

• CN=3; ON=0

• CN=3; ON=+2