Deck 25: Transition Metals and Coordination Compounds

Question 1

Identify the structure that fac-mer isomerism can occur in.

A) MA₄B₂
B) MA₅B
C) MAB
D) MA₃B₃
E) MAB₂

Answer 1

MA₃B₃

Question 2

Name the following: [Fe(CO)₆][Ag(CN)₂]₂

A) iron(III) hexacarbonylsilverdicyanide
B) hexacarbonyliron(II) dicyanoargentate
C) iron(II) carbonyl silvercyanide
D) hexacarbonyliron(III) dicyanosilvate
E) iron(II) hexacarbonyl silvercyanide

Answer 2

hexacarbonyliron(II) dicyanoargentate

Question 3

Identify the geometry of the complex ion if the hybridization is d²sp³.

A) square planar
B) octahedral
C) tetrahedral
D) linear
E) trigonal planar

Answer 3

octahedral

Question 4

Choose the electron configuration for Fe³⁺.

A) [Ar]4s²3d³
B) [Ar]3d⁵
C) [Ar]4s²3d⁹
D) [Ar]4s¹3d⁴
E) [Ar]4s²3d⁶

Question 5

Identify the structure that cis-trans isomerism can occur in.

A) MA₄B₂
B) MA₅B
C) MAB
D) MA₃B₃
E) MAB₂

Question 6

Determine the chemical formula for the compound,tetracarbonylplatinum(IV)chloride.

A) [Pt(CO)₄]Cl₂
B) [Pt(CO)₄]Cl₄
C) [Pt(CO)₄Cl₄]^2-
D) [PtCl₄](CO)₄
E) [Pt(CO)₄Cl₄]^4-

Question 7

Identify the ion that is responsible for the red in garnet and the yellow-green of peridot.

A) Cr²⁺
B) Cu⁺
C) Cu²⁺
D) Cr³⁺
E) Fe²⁺

Question 8

Identify the ion that is responsible for the green color in emeralds.

A) Cr³⁺
B) Cr⁴⁺
C) Cr⁵⁺
D) Cr⁶⁺
E) Cr⁷⁺

Question 9

Identify the geometry of the complex ion if the hybridization is dsp².

A) square planar
B) octahedral
C) tetrahedral
D) linear
E) trigonal planar

Question 10

Name the following: Fe[AlF₆]

A) ironaluminumhexafluoride
B) iron(II) hexafluoroaluminum
C) iron(III) hexafluoroaluminate
D) iron(I) aluminumhexafluoride
E) aluminumhexafluoroferrate

Question 11

Identify the ion that is responsible for the red color of rubies.

A) Cr³⁺
B) Cr⁴⁺
C) Cr⁵⁺
D) Cr⁶⁺
E) Cr⁷⁺

Question 12

Determine the chemical formula for the compound,diaquadicarbonylzinc tetrabromopalladate(IV).

A) [PdZn(H₂O)₂(CO)₂]Br₄
B) [Zn(H₂O)₂(CO)₂]₂[PdBr₄]
C) [Pd(H₂O)₂][Zn(CO)₂]Br₄
D) [Pd(H₂O)₂]₂[Zn(CO)₂]₃Br₄
E) [Zn(H₂O)₂(CO)₂][PdBr₄]

Question 13

Identify the geometry of [Zn(NH₃)₄]⁺².

A) tetrahedral
B) octahedral
C) linear
D) square planar
E) trigonal planar

Question 14

Identify the ion that is responsible for the blue of turquoise.

A) Cr²⁺
B) Cu⁺
C) Cu²⁺
D) Cr³⁺
E) Fe²⁺

Question 15

Identify the isomers that have ligands with different spatial arrangements about the metal ions.

A) linkage isomers
B) geometric isomers
C) coordination isomers
D) optical isomers
E) structural isomers

Question 16

Which of the following complex ions absorbs light of the longest wavelength?

A) [Cr(CN)₆]^3-
B) [CrCl₆]^3-
C) [Cr(en)₃]³⁺
D) [Cr(NH₃)₆]³⁺
E) [Cr(NO₂)₆]^3-

Question 17

Determine the chemical formula for the compound,potassiumtrisethylenediamine chromate(III).

A) K₃[Cr(NH₂CH₂CH₂NH₂)₃]
B) [K(NH₂CH₂CH₂NH₂)₃]Cr³⁺
C) [KCr(NH₂CH₂CH₂NH₂)₃]³⁺
D) K₂[Cr(NH₂CH₂CH₂NH₂)₄]
E) [Cr(NH₂CH₂CH₂NH₂)₂]K₂

Question 18

Identify the isomers that occurs when a coordinated ligand exchanges places with the uncoordinated counterion.

A) linkage isomers
B) geometric isomers
C) coordination isomers
D) optical isomers
E) stereoisomers

Question 19

Name the following: [Ni(NH₃)₃(H₂O)₃]Cl₂

A) nickel(II) trihydrotriamminechloride
B) nickel(I) triamminetrihydrochloride
C) dichloronickel(II) triamminetrihydride
D) nickel(III) chloride
E) triamminetriaquanickel(II) chloride

Question 20

Identify the isomers that have ligands which coordinates to metal in different ways.

A) linkage isomers
B) geometric isomers
C) coordination isomers
D) optical isomers
E) stereoisomers

Question 21

What is the highest possible oxidation state for cobalt?

A) +1
B) +7
C) +6
D) +4
E) +5

Question 22

Identify the compound that is used to treat victims of heavy metal poisoning.

A) KCN
B) CO
C) EDTA
D) carbonic anhydrase
E) cisplatin

Question 23

How many unpaired electrons would you expect for the complex ion: [FeCl₆]^4-?

A) 2
B) 6
C) 4
D) 3
E) 0

Question 24

Identify the compound that an effective anticancer agent.

A) KCN
B) CO
C) EDTA
D) carbonic anhydrase
E) cisplatin

Question 25

Choose the electron configuration for Nb³⁺.

A) [Kr]5s²4d²
B) [Kr]5s²
C) [Kr]4d²
D) [Ar]4s²3d¹⁰4p⁶
E) [Kr]5s²4d⁴

Question 26

How many d electrons are in W O₄^2-?

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

Question 27

How many unpaired electrons would you expect for the complex ion: [Cr(CN)₆]^4-?

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

Question 28

Choose the electron configuration for Cr³⁺.

A) [Ne]3s²3p⁶
B) [Ar]4s¹3d²
C) [Ar]4s²3d¹
D) [Ar]4s²3d⁷
E) [Ar]3d³

Question 29

Choose the electron configuration for V³⁺.

A) [Ar]3d²
B) [Ar]4s²3d²
C) [Ar]4s²3d⁴
D) [Ar]4s²
E) [Ne]3s²3p⁶

Question 30

Identify the geometry around the Fe²⁺ ion in the hemoglobin complex.

A) octahedral
B) tetrahedral
C) pentadral
D) hexadral
E) heptadral

Question 31

Which of the following can function as a bidentate ligand?

A) NO ⁺
B) OH ^-
C) S CN ^-
D) H₂NCH₂CO₂^-

Question 32

What is the ground-state electron configuration for Cr³⁺ (Z = 24)?

A) [Ar] 4s² 3d⁷
B) [Ar] 4s² 3d¹
C) [Ar] 3d³
D) [Ar] 4s¹ 3d²

Question 33

Which of the following complex ions absorbs light of the shortest wavelength?

A) [FeCl₆]^3-
B) [Fe(OH)₆]^3-
C) [Fe(CN)₆]^3-
D) [Fe(H₂O)₆]³⁺
E) [FeI₆]^3-

Question 34

What is the ground-state electron configuration for the element copper (Z = 29)?

A) [Ne] 4s² 3d⁹
B) [Ar] 4s² 3d⁹
C) [Ar] 4s¹ 3d¹⁰
D) [Ar] 3d⁹

Question 35

The complex ion,[Ni(NH₃)₆]²⁺,has a maximum absorption near 580 nm.Calculate the crystal field splitting energy (in kJ/mol)for this ion.

A) 114 kJ/mol
B) 292 kJ/mol
C) 343 kJ/mol
D) 206 kJ/mol
E) 485 kJ/mol

Question 36

How many unpaired electrons would you expect for the complex ion: [Co(OH)₆]^3-?

A) 1
B) 2
C) 4
D) 0
E) 3

Question 37

Identify the transition metal that is the coordinated metal in chlorophyll.

A) magnesium
B) manganese
C) selenium
D) iron
E) silver

Question 38

How many unpaired electrons would you expect for the complex ion: [Fe(NH₃)₆]²⁺?

A) 5
B) 2
C) 6
D) 4
E) 0

Question 39

Which of the following species has the electron configuration [Ar]3d⁶?

A) Cr
B) Fe³⁺
C) Co³⁺
D) Ni³⁺

Question 40

Choose the electron configuration for Ru⁷⁺.

A) [Kr]5s¹4d¹
B) [Kr]5s²4d³
C) [Kr]5s²4d¹
D) [Kr]
E) [Kr]5s²4d⁶

Question 41

Which of the following pairs of coordination compounds or complex ions are examples of coordination isomers?

A) [Fe(NH₃)₅NO₂]²⁺ and [Fe(NH₃)₅ONO]²⁺
B) [Fe(NH₃)₂(H₂O)₄]Cl₂ and [Fe(NH₃)₂(H₂O)₄]Br₂
C) [Fe(NH₃)₂(H₂O)₄]Br₂ and [Fe(NH₃)₄(H₂O)₂]Br₂
D) [Cu(CO)₅I]F and [Cu(CO)₅CF]I
E) [MnCl₃Br]^2- and [MnClBr₃]^2-

Question 42

Which of the following compounds can exhibit fac-mer isomerism?

A) [Cr(H₂O)₄Br₂]⁺
B) [Fe(CO)₅ONO]²⁺
C) [Fe(CO)₃(NH₃)₃]³⁺
D) [Cu(CO)₅Br]⁺
E) [V(NH₃)₄(H₂O)₂]²⁺

Question 43

Which of the following compounds can exhibit cis-trans isomerism?

A) [Cr(H₂O)₄Cl₂]⁺
B) [Cu(CO)₅Cl]⁺
C) [Co(CO)₃(NH₃)₃]³⁺
D) [Co(CO)₅ONO]²⁺
E) [Fe(NH₃)₆]²⁺

Question 44

What type of hybridization (according to valence bond theory)does Fe exhibit in the complex ion,[Fe(H₂O)₄(Br)₂]⁺?

A) dsp³
B) sp3
C) d²sp²
D) d²sp³
E) d²sp

Question 45

Determine the chemical formula for the compound,diamminetetraaquamanganese(II)bromide.

A) [Mn(NH₃)₂(H₂O)₄Br]
B) [Mn(NH₃)₂][(H₂O)₄Br]
C) [Mn(NH₃)₂(H₂O)₄]Br₂
D) [Mn(H₂O)₄][(NH₃)₂Br]
E) [Mn(NH₃)₂(H₂O)₄]Br₃

Question 46

Name the following: [Pt(H₂O)₄Br₂]F₂

A) tetraaquadibromoplatinum(IV) fluoride
B) tetraaquadibromoplatinate difluoride
C) platinum(II) fluoride
D) platinum(III) tetraaquadibromofluoride
E) platinum(II) dibromotetrahydride difluoride

Question 47

Identify the geometry of [Ag(NH₃)₂]⁺.

A) tetrahedral
B) square planar
C) linear
D) bent
E) trigonal pyramidal

Question 48

Which of the following species is diamagnetic?

A) an isolated, gas-phase Mn²⁺ ion
B) a high-spin octahedral Fe²⁺ complex
C) an isolated, gas-phase Cu²⁺ ion
D) a low-spin octahedral Co³⁺ complex

Question 49

Determine the chemical formula for the compound,hexammineiron(III)hexacyanoferrate(III).

A) [Fe₂(NH₃)₆(CN)₆]³⁺
B) [Fe(NH₃)₆][Fe(CN)₆]₂
C) [Fe(NH₃)₆]₃[Fe(CN)₆]₂
D) [Fe(NH₃)₆][Fe(CN)₆]
E) [Fe₂(NH₃)₃(CN)₃]⁶⁺

Question 50

Choose the bidentate ligand from the substances below.

A) ethylenediamine
B) EDTA
C) chloride ion
D) ammonia
E) carbon monoxide

Question 51

Identify the geometry of [PtCl₄]^2-.

A) tetrahedral
B) square planar
C) linear
D) octahedral
E) trigonal bipyramidal

Question 52

Choose the polydentate ligand from the substances below.

A) oxalate ion
B) EDTA
C) nitrite ion
D) hydroxide ion
E) carbon monoxide

Question 53

Which of the following can function as a chelating agent?

A) OH^-
B) H₂O
C) C₂O₄^2-
D) NH₃

Question 54

How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of Na₃[FeCl₆] in water?

A) 4
B) 10
C) 2
D) 9
E) 1

Question 55

Which of the following pairs of coordination compounds or complex ions are examples of linkage isomers?

A) [Cu(NH₃)₅Br]Cl and [Cu(NH₃)₅Cl]Br
B) [Fe(NH₃)₂(H₂O)₄]Br₂ and [Fe(NH₃)₄(H₂O)₂]Br₂
C) [Mn(CO)₅NO₂]²⁺ and [Mn(CO)₅ONO]²⁺
D) [Fe(NH₃)₂(H₂O)₄]Cl₂ and [Fe(NH₃)₂(H₂O)₄]I₂
E) [Ti(H₂O)₆]3⁺ and [Ti(NH₃)₆]3⁺

Question 56

Which of the following compounds can exhibit fac-mer isomerism?

A) [Cu(CO)₅I]⁺
B) [Fe(H₂O)₃(CO)₃]³⁺
C) [Ni(CO)₅NO₂]²⁺
D) [V(NH₃)₂(H₂O)₄]²⁺
E) [Cr(H₂O)₄Br₂]⁺

Question 57

Which of the following compounds can exhibit cis-trans isomerism?

A) [Fe(CO)₅NO₂]²⁺
B) [Cu(CO)₅Br]⁺
C) [MnClBr₃]^2-
D) [Mn(H₂O)₆]3⁺
E) [Ni(CO)₂(NH₃)₂]²⁺

Question 58

Which ion would you expect to have the largest crystal field splitting Δ?

A) [Rh(CN)₆]^4-
B) [Rh(CN)₆]^3-
C) [Rh(H₂O)₆]²⁺
D) [Rh(H₂O)₆]³⁺

Question 59

Name the following: [Fe(H₂O)₄F₂]F

A) tetraaquadifluoroiron(II) fluoride
B) difluorotetrahydroironfluoride
C) difluorotetrahydroiron(II) fluoride
D) tetraaquadifluoroiron(III) fluoride
E) iron(II) difluorotetraquafluoride

Question 60

Identify the geometry of [Fe(H₂O)₆]³⁺.

A) tetrahedral
B) square pyramidal
C) linear
D) octahedral
E) trigonal planar

Question 62

Explain how EDTA is used to treat lead poisoning.

Question 63

What is the difference between a weak-field complex and a strong-field complex?

Question 64

Why is +2 a common oxidation state for transition elements?

Question 65

What is a coordinate covalent bond?

Question 66

How many unpaired electrons would you expect for the complex ion: [Co(NH₃ )₆]⁴⁺?

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

Question 67

Identify the transition metal that is used in hemoglobin synthesis in the human body.

A) potassium
B) zinc
C) copper
D) manganese
E) chromium

Question 68

Identify the transition metal that is used in fat and carbohydrate synthesis in the human body.

A) potassium
B) zinc
C) copper
D) manganese
E) chromium

Question 69

Match the following.

A)[Cr(NH₃)₃(CO)₃]³⁺
B)[Ni(CN)₂(OH)₂]^2-
C)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
D)[Cr(en)₃]³⁺
E)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
1)linkage
2)coordination
3)cis-trans
4)mer-fac
5)optical

Question 70

Identify the transition metal that is used in oxygen transport in the human body.

A) chromium
B) iron
C) sodium
D) copper
E) silver

Question 71

What type of geometry (according to valence bond theory)does V exhibit in the complex ion: [V(NH₃)₄]²⁺?

A) square bipyramidal
B) see-saw
C) trigonal pyramidal
D) bent
E) square planar

Question 72

What type of hybridization (according to valence bond theory)does Pt exhibit in the complex ion,[Pt(NH₃)₄]²⁺?

A) dsp³
B) sp
C) d²sp³
D) d²sp
E) dsp²

Question 73

What is the Lanthanide contraction?

Question 74

What type of geometry (according to valence bond theory)does Co exhibit in the complex ion, ?

A) linear
B) trigonal planar
C) square pyramidal
D) octahedral
E) tetrahedral