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.

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

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

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.

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)

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.

Question 9

How many 3d electrons does a V3+ ion have

Accepted Answer

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.

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]

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.

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.

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)

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

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

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

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

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:

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:

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