Deck 25: Transition Metals and Coordination Compounds

Question 1

Name the following: [Fe(H₂O)₄Br₂]Cl

A)tetraaquadibromoiron(II)chloride
B)dibromotetrahydroironchloride
C)dibromotetrahydroiron(II)chloride
D)tetraaquadibromoiron(III)chloride
E)iron(II)dibromotetraquachloride

Answer 1

tetraaquadibromoiron(III)chloride

Question 2

Choose the electron configuration for Fe³⁺.

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

Answer 2

[Ar]3d⁵

Question 3

Determine the chemical formula for the compound tris(ethylenediamine)chromium(III)chloride.

A)[Cr(NH₂CH₂CH₂NH₂)₃]Cl₃
B)[(NH₂CH₂CH₂NH₂)₃]Cr³⁺
C)[Cr(NH₂CH₂CH₂NH₂)₃]³⁺
D)Cl₂[Cr(NH₂CH₂CH₂NH₂)₄]
E)[Cr(NH₂CH₂CH₂NH₂)₂]Cl₂

Answer 3

[Cr(NH₂CH₂CH₂NH₂)₃]Cl₃

Question 4

Choose the electron configuration for Nb³⁺.

A)[Kr]5s¹4d²
B)[Kr]5s²4d¹
C)[Kr]5s²
D)[Kr]4d²
E)[Kr]5s²4d⁵

Question 5

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 6

Choose the electron configuration for Cr³⁺.

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

Question 7

Name the following: Fe[AlF₆]

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

Question 8

How many moles of aqueous ions will be produced from the dissolution of 1.0 mole of K₃[FeCl₆] in water?

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

Question 9

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

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

Question 10

Determine the chemical formula for the compound diaquadicarbonylzinc tetrabromopalladate(II).

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 11

Name the following: [Pt(H₂O)₄F₂]Br₂

A)tetraaquadifluoroplatinum(IV)bromide
B)tetraaquadibromodifluoroplantinate
C)platinum(II)bromide
D)platinum(III)tetraaquadifluorobromide
E)platinum (II)dibromodifluorotetrahydride

Question 12

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

A)Cr⁺³
B)Cr⁺⁴
C)Cr⁺⁵
D)Cr⁺⁶
E)Cr⁺⁷

Question 13

Choose the electron configuration for Zr²⁺.

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

Question 14

Determine the chemical formula for the compound diamminetetraaquairon(II)chloride.

A)[Fe(NH₃)₂(H₂O)₄Cl]
B)[Fe(NH₃)₂][(H₂O)₄Cl]
C)[Fe(NH₃)₂(H₂O)₄]Cl₂
D)[Fe(H₂O)₄][(NH₃)₂Cl]
E)[Fe(NH₃)₂(H₂O)₄]Cl₃

Question 15

Choose the polydentate ligand from the substances below.

A)thiocyanate ion
B)EDTA
C)nitrite ion
D)hydroxide ion
E)chloride ion

Question 16

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 17

Choose the bidentate ligand from the substances below.

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

Question 18

Determine the chemical formula for the compound hexaammineiron(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 19

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

A)Cr⁺³
B)Cr⁺⁴
C)Cr⁺⁵
D)Cr⁺⁶
E)Cr⁺⁷

Question 20

Choose the electron configuration for Ti²⁺.

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

Question 21

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

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

Question 22

How many unpaired electrons would you expect for the complex ion [FeF₆]^4-?

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

Question 23

The complex ion [Ni(NH₃)₆]²⁺ has a maximum absorption near 580 nm. Calculate the crystal field splitting energy (in kJ mol^-1)for this ion.

A)114 kJ mol^-1
B)292 kJ mol^-1
C)343 kJ mol^-1
D)206 kJ mol^-1
E)485 kJ mol^-1

Question 24

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

A)[Cr(H₂O)₄Br₂]⁺
B)[Cu(CO)₅Br]⁺
C)[Fe(CO)₃(NH₃)₃]³⁺
D)[Fe(CO)₅ONO]²⁺
E)[Fe(NH₃)₆]²⁺

Question 25

What is the ground-state electron configuration for the element chromium (Z = 24)?

A)[Ne] 4s²3d⁴
B)[Ar] 4s²3d⁴
C)[Ar] 4s¹3d⁵
D)[Ar] 3d⁶

Question 26

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

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

Question 27

Identify the isomers that have ligands that coordinate to a metal in different orientations.

A)linkage isomers
B)cis-trans isomers
C)coordination isomers
D)optical isomers
E)stereoisomers

Question 28

How many unpaired electrons would you expect for the complex ion [Mn(H₂O)₆]²⁺?

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

Question 29

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)[Fe(NH₃)₄(H₂O)₂]²⁺

Question 30

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 31

What is the highest possible oxidation state for manganese?

A)+2
B)+5
C)+6
D)+7

Question 32

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

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

Question 33

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 34

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

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

Question 35

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

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

Question 36

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]Cl₂ and [Fe(NH₃)₄(H₂O)₂]Cl₂
C)[Fe(CO)₅NO₂]²⁺ and [Fe(CO)₅ONO]²⁺
D)[Fe(NH₃)₂(H₂O)₄]Cl₂ and [Fe(NH₃)₂(H₂O)₄]Br₂
E)[Cr(H₂O)₆]3⁺ and [Cr(NH₃)₆]3⁺

Question 37

Which of the following is a type of structural isomerism?

A)linkage isomers
B)cis-trans isomers
C)fac-mer isomers
D)enantiomers
E)optical isomers

Question 38

How many unpaired electrons would you expect for the complex ion [MnF₆]^4-?

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

Question 39

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

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

Question 40

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 41

Match the following.

cis-trans

A)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
B)[Cr(en)₃]³⁺
C)[Ni(CN)₂(OH)₂]^2-
D)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
E)[Cr(NH₃)₃(CO)₃]³⁺

Question 42

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

A)Cr
B)Fe³⁺
C)Co³⁺
D)Ni³⁺

Question 43

How many d electrons are there in CrO₇^2-?

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

Question 44

Match the following.

linkage

A)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
B)[Cr(en)₃]³⁺
C)[Ni(CN)₂(OH)₂]^2-
D)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
E)[Cr(NH₃)₃(CO)₃]³⁺

Question 45

Which of the following can function as a chelating agent?

A)SH^-
B)H₂O
C)H₂NCH₂CO₂^-
D)SCN ^-

Question 46

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

Question 47

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

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

Question 48

Match the following.

optical

A)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
B)[Cr(en)₃]³⁺
C)[Ni(CN)₂(OH)₂]^2-
D)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
E)[Cr(NH₃)₃(CO)₃]³⁺

Question 49

What is a coordinate covalent bond?

Question 50

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

Question 51

Which of the following can function as a bidentate ligand?

A)CN ^-
B)SH^-
C)HO
D)H₂NCH₂

Question 52

Which of the following species is diamagnetic?

A)an isolated gas-phase Cr³⁺ ion
B)a high-spin octahedral Cr²⁺ complex
C)an isolated gas-phase Cu²⁺ ion
D)a low-spin octahedral Co³⁺ complex

Question 53

Match the following.

coordination

A)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
B)[Cr(en)₃]³⁺
C)[Ni(CN)₂(OH)₂]^2-
D)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
E)[Cr(NH₃)₃(CO)₃]³⁺

Question 54

Match the following.

mer-fac

A)[Zn(NH₃)₂Cl₂]Br_{2 and} [Zn(NH₃)₂Br₂]Cl₂
B)[Cr(en)₃]³⁺
C)[Ni(CN)₂(OH)₂]^2-
D)[Cu(SCN)₄]^3- and [Cu(NCS)₄]^3-
E)[Cr(NH₃)₃(CO)₃]³⁺

Question 55

Explain how EDTA is used to treat lead poisoning.