Question 1

The chemical formula of triammineaquodichlorochromium(III) chloride is:
[Cr(NH3)3(H2O)Cl2]Cl

Accepted Answer

A) True 
 B)False

Question 2

The total number of electrons in the 3d orbitals of Cr3+ is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  5. 
A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  5.

Question 3

What is the coordination number of silver in [Ag(NH3)2]Cl

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  None of the above 
A)  2 
B)  4 
C)  6 
D)  8 
E)  None of the above

Question 4

In transition metal complexes, the metal ions are Lewis acids.

Accepted Answer

A) True 
 B)False

Question 5

What is the oxidation number of Co in the complex Na[Co(H2O)2Cl4]

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  None of the above 
A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  None of the above

Question 6

Two well-known complex ions containing Ni are [Ni(H2O)6]2+, which is green, and [Ni(en)3]2+, which is purple. Which one of these statements is true

Accepted Answer

A)  The crystal field splitting energy (
D)  is greater for [Ni(en)3]2+ than for [Ni(H2O)6]2+. 
B)  [Ni(en)3]2+ absorbs energy in the red region of the spectrum. 
C)  Both complex ions are diamagnetic. 
D)  [Ni(H2O)6]2+ transmits light with wavelengths of approximately 650-700 nm. 
E)  The green complex absorbs green light. 
A)  The crystal field splitting energy (
D)  is greater for [Ni(en)3]2+ than for [Ni(H2O)6]2+. 
B)  [Ni(en)3]2+ absorbs energy in the red region of the spectrum. 
C)  Both complex ions are diamagnetic. 
D)  [Ni(H2O)6]2+ transmits light with wavelengths of approximately 650-700 nm. 
E)  The green complex absorbs green light.

Question 7

Which of the following choices can function as a monodentate ligand only

Accepted Answer

A)  (H2NCH2CH2NH2) 
B)  (-O2CCO2-) 
C)  (H2O) 
D)  (-OCH2CH2CH2O-) 
E)  (H2PCH2CH2PH2) 
A)  (H2NCH2CH2NH2) 
B)  (-O2CCO2-) 
C)  (H2O) 
D)  (-OCH2CH2CH2O-) 
E)  (H2PCH2CH2PH2)

Question 8

Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH3)2(en)Cl2].

Accepted Answer

A)  C.N. = 4; O.N. = +2. 
B)  C.N. = 5; O.N. = +3. 
C)  C.N. = 5; O.N. = +2. 
D)  C.N. = 6; O.N. = +3. 
E)  C.N. = 6; O.N. = +2. 
A)  C.N. = 4; O.N. = +2. 
B)  C.N. = 5; O.N. = +3. 
C)  C.N. = 5; O.N. = +2. 
D)  C.N. = 6; O.N. = +3. 
E)  C.N. = 6; O.N. = +2.

Question 9

How many 3d electrons does a V3+ ion have

Accepted Answer

A)  6 
B)  5 
C)  4 
D)  3 
E)  2 
A)  6 
B)  5 
C)  4 
D)  3 
E)  2

Question 10

A molecule or ion that provides an electron pair for coordinate covalent bond formation is called a Lewis acid.

Accepted Answer

A) True 
 B)False

Question 11

The electron configuration of a Co3+ ion is

Accepted Answer

A)  [Ar]3d6. 
B)  [Ar]4s13d5. 
C)  [Ar] 4s23d4. 
D)  [Ar]3d5. 
E)  [Ar]3d4. 
A)  [Ar]3d6. 
B)  [Ar]4s13d5. 
C)  [Ar] 4s23d4. 
D)  [Ar]3d5. 
E)  [Ar]3d4.

Question 12

The correct name of the complex ion [Ni(CN)4]2- is:
tetracyanonickelate(II) ion

Accepted Answer

A) True 
 B)False

Question 13

Which of these octahedral complexes can have cis-trans isomers

Accepted Answer

A)  Co(NH3)3Cl3 
B)  [Co(NH3)5Cl]Cl2 
C)  [Co(NH3)6]Cl3 
D)  Na3[CoCl6] 
E)  Na2[Co(NH3)Cl5] 
A)  Co(NH3)3Cl3 
B)  [Co(NH3)5Cl]Cl2 
C)  [Co(NH3)6]Cl3 
D)  Na3[CoCl6] 
E)  Na2[Co(NH3)Cl5]

Question 14

The electron configuration of a nickel atom is

Accepted Answer

A)  [Ar]4s23d6. 
B)  [Ar]4s13d7. 
C)  [Ar]3d8. 
D)  [Ar]4s23d8. 
E)  [Ar]3d10. 
A)  [Ar]4s23d6. 
B)  [Ar]4s13d7. 
C)  [Ar]3d8. 
D)  [Ar]4s23d8. 
E)  [Ar]3d10.

Question 15

The total number of electrons in the 3d orbitals of a titanium atom is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  5. 
A)  1. 
B)  2. 
C)  3. 
D)  4. 
E)  5.

Question 16

The correct name for K3[Fe(C2O4)3] is:

Accepted Answer

A)  tripotassium trioxalatoiron(III) 
B)  potassium trioxalatoiron(II) 
C)  potassium trioxalatoiron(III) 
D)  tripotassium oxalatoiron(0) 
E)  potassium trioxalateiron(II) 
A)  tripotassium trioxalatoiron(III) 
B)  potassium trioxalatoiron(II) 
C)  potassium trioxalatoiron(III) 
D)  tripotassium oxalatoiron(0) 
E)  potassium trioxalateiron(II)

Question 17

What is the oxidation number of cobalt in [Co(NH3)6]Cl3

Accepted Answer

A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  None of the above 
A)  +1 
B)  +2 
C)  +3 
D)  +4 
E)  None of the above

Question 18

In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons

Accepted Answer

A)  0 
B)  1 
C)  2 
D)  3 
E)  5 
A)  0 
B)  1 
C)  2 
D)  3 
E)  5

Question 19

In [Cu(NH3)4]CO3, how many 3d electrons does copper have

Accepted Answer

A)  6 
B)  7 
C)  8 
D)  9 
E)  10 
A)  6 
B)  7 
C)  8 
D)  9 
E)  10

Question 20

The correct formula for pentaamminechloroplatinum(IV) chloride is:

Accepted Answer

A)  [Pt(NH3)5Cl]Cl3 
B)  [Pt(NH3)5Cl]Cl2 
C)  [Pt(NH3)5]Cl3 
D)  [Pt(NH3)5Cl]Cl4 
E)  [Pt(NH3)5]Cl4 
A)  [Pt(NH3)5Cl]Cl3 
B)  [Pt(NH3)5Cl]Cl2 
C)  [Pt(NH3)5]Cl3 
D)  [Pt(NH3)5Cl]Cl4 
E)  [Pt(NH3)5]Cl4

Exam 23: Transition Metals Chemistry and Coordination Compounds

The chemical formula of triammineaquodichlorochromium(III) chloride is: [Cr(NH3)3(H2O)Cl2]Cl

The total number of electrons in the 3d orbitals of Cr3+ is

What is the coordination number of silver in [Ag(NH3)2]Cl

In transition metal complexes, the metal ions are Lewis acids.

What is the oxidation number of Co in the complex Na[Co(H2O)2Cl4]

Two well-known complex ions containing Ni are [Ni(H2O)6]2+, which is green, and [Ni(en)3]2+, which is purple. Which one of these statements is true

Which of the following choices can function as a monodentate ligand only

Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH3)2(en)Cl2].

How many 3d electrons does a V3+ ion have

A molecule or ion that provides an electron pair for coordinate covalent bond formation is called a Lewis acid.

The electron configuration of a Co3+ ion is

The correct name of the complex ion [Ni(CN)4]2- is: tetracyanonickelate(II) ion

Which of these octahedral complexes can have cis-trans isomers

The electron configuration of a nickel atom is

The total number of electrons in the 3d orbitals of a titanium atom is

The correct name for K3[Fe(C2O4)3] is:

What is the oxidation number of cobalt in [Co(NH3)6]Cl3

In the complex ion [ML6]n+, Mn+ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons

In [Cu(NH3)4]CO3, how many 3d electrons does copper have

The correct formula for pentaamminechloroplatinum(IV) chloride is:

Chemistry: The Study of Change

Atoms Molecules and Ions

Mass Relationships in Chemical Reactions

Reactions in Aqueous Solutions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

Nuclear Chemistry

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

The chemical formula of triammineaquodichlorochromium(III) chloride is: [Cr(NH₃)₃(H₂O)Cl₂]Cl

The total number of electrons in the 3d orbitals of Cr³⁺ is

What is the coordination number of silver in [Ag(NH₃)₂]Cl

What is the oxidation number of Co in the complex Na[Co(H₂O)₂Cl₄]

Two well-known complex ions containing Ni are [Ni(H₂O)₆]²⁺, which is green, and [Ni(en)₃]²⁺, which is purple. Which one of these statements is true

Give the coordination number (C.N.) and oxidation number (O.N.) of the metal atom in the coordination compound [Cr(NH₃)₂(en)Cl₂].

How many 3d electrons does a V³⁺ ion have

The electron configuration of a Co³⁺ ion is

The correct name of the complex ion [Ni(CN)₄]^2- is: tetracyanonickelate(II) ion

The correct name for K₃[Fe(C₂O₄)₃] is:

What is the oxidation number of cobalt in [Co(NH₃)₆]Cl₃

In the complex ion [ML₆]ⁿ⁺, Mⁿ⁺ has seven d electrons and L is a weak field ligand. According to crystal field theory, the magnetic properties of the complex ion correspond to how many unpaired electrons

In [Cu(NH₃)₄]CO₃, how many 3d electrons does copper have