Full Test Bank The Transition Elements And Their Ch23

Chapter 23 Test Bank

Transition Elements and Their Coordination Compounds

1. Which of the following elements has the ground state electron configuration, [Xe]4f¹⁴5d¹⁰6s¹?

A. Hg

B. Ag

C. Hf

D. Au

E. Th

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Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

2. Which one of the following has the ground state electron configuration [Ar]3d¹⁰4s¹?

A. In⁺

B. Cd²⁺

C. Ag⁺

D. Ag

E. Cu

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3. The most common oxidation state for ions of the transition elements is

A. +2.

B. +3.

C. +4.

D. +5.

E. +6.

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4. The most common oxidation state for ions of the inner transition elements is

A. +2.

B. +3.

C. +4.

D. +5.

E. +7.

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5. A feature of transition metal chemistry is that these elements exhibit multiple oxidation states.

Which one of the following elements exhibits the smallest number of different oxidation states?

A. Ti

B. Cr

C. Mn

D. Co

E. Zn

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6. Which of the following transition elements can have an oxidation number of ⁺7?

A. V

B. Cr

C. Mn

D. Fe

E. Co

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7. The ground state electronic configuration of Cr²⁺ is

A.[Ar]4s¹3d⁵.

B.[Ar]4s²3d⁴.

C.[Ar]3d⁴.

D.[Ar]4s¹3d³.

E.[Ar]4s²3d².

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8. The ground state electronic configuration of Zn²⁺ is

A.[Ar]4s²3d⁸.

B.[Ar]4s²3d¹⁰.

C.[Ar]4s¹3d⁹.

D.[Ar]3d1⁰.

E.[Ar]3d⁸.

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9. How many unpaired electrons are there in the Fe³⁺ ion?

A. 5

B. 4

C. 3

D. 2

E. 1

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10. Which of the following atoms has the biggest radius?

A. Ti

B. Cr

C. Fe

D. Ni

E. Zn

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Subtopic: Properties of Transition Metals

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11. A certain transition element has the stable oxidation states of ₊2, +3, +4, +5, and +6. In which state will the element be most likely to form a covalent bond with chlorine?

A. +2

B. +3

C. +4

D. +5

E. +6

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12. A certain transition element has the stable oxidation states of +2, +3, +4, +5, and +6. In which state

the element be most likely to form an ionic bond with chlorine?

A. +2

B. +3

C. +4

D. +5

E. +6

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13. Which of the following transition elements can achieve the largest oxidation number?

A. chromium, Cr, Group 6B(6)

B.manganese, Mn, Group 7B(7)

C.iron, Fe, Group 8B(8)

D.cobalt, Co, Group 8B(9)

E.zinc, Zn, Group 2B(12)

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14. If M represents a transition element, which of the following oxides should be the least basic?

A. MO

B.M₂O

C.M₂O₃

D. MO₂

E. MO₃

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15. Which of the following ions is most likely to form colored compounds?

A. Sc³⁺

B. Cu⁺

C. Zn²⁺

D. Cr³⁺

E. Ca²⁺

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16. Which of the following ions is least likely to form colored compounds?

A. Mn²⁺

B. Cr⁵⁺

C. Sc³⁺

D. Fe³⁺

E. Co²⁺

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17. Which of the following will be diamagnetic?

A. Ni²⁺

B. Cr²⁺

C. Mn²⁺

D. Co³⁺

E. Ti⁴⁺

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18. Which of the following will be paramagnetic?

A. V⁵⁺

B. Ni²⁺

C. Mn⁷⁺

D. Ti⁴⁺

E. Zn

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19. What is the highest possible oxidation state for palladium, Pd?

A. +1

B. +2

C. +3

D. +4

E. +6

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20. What is the highest possible oxidation state for molybdenum, Mo?

A. +2

B. +4

C. +6

D. +8

E. None of these choices are correct.

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21. Which of the following should be the strongest reducing agent?

A. Fe

B. Ru

C. Os

D. Re

E. Cu

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22. Which of the following will be the strongest oxidizing agent?

A. Cr

B. Cr(II)

C. Cr(III)

D. Cr(IV)

E. Cr(VI)

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23. Which of the oxidation states of chromium has the largest valence-state electronegativity?

A. chromium(0)

B.chromium(II)

C.chromium(III)

D.chromium(IV)

E.chromium(VI)

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24. Chromium and manganese are among the transition elements that form several different oxides. Which of the following statements characterize these oxides?

A.As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from acidic to basic.

B.As the oxidation number on the metal increases, the valence-state electronegativity increases and the oxides change from basic to acidic.

C.As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from acidic to basic.

D.As the oxidation number on the metal increases, the valence-state electronegativity decreases and the oxides change from basic to acidic.

E. None of these choices are correct.

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25. Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reactswith compounds in air to form a black coating. What substance is formed?

A. silver oxide

B.silver chloride

C.silver sulfide

D.silver carbonate

E.silver nitride

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26. A certain transition metal complex has the formula MX₄²⁺. If the metal ion has a d⁸ electron configuration, what is the shape of the complex?

A. octahedral

B.square pyramid

C.tetrahedral

D.trigonal pyramid

E.square planar

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Topic: Transition Metals and Coordination Compounds

27. Which of the following coordination numbers applies to octahedral complexes?

A. 4

B. 5

C. 6

D. 8

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

28. Which of the following is considered a bidentate ligand?

A. cyanide, CN^–

B. thiocyanate, SCN^–

C .oxalate, C₂O₄^2–

D .nitrite, NO₂^–

E. hydroxide, OH^–

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Topic: Transition Metals and Coordination Compounds

29. Which one of the following normally acts as a bidentate ligand in complexes with transitionmetal ions?

A. CN^–

B. EDTA^4–

C. SCN^–

D. ethylene diamine

E. ethylene, C₂H₄

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

30. A characteristic of ligands is that

A. they are Lewis acids.

B.they are Lewis bases.

C.they are ions.

D.they are electron pair acceptors.

E.they are Brønsted-Lowry acids.

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

31. In the formation of a transition metal complex, the central metal atom or ion acts as

A. an Arrhenius acid.

B.a Bronsted-Lowry acid.

C.a Bronsted-Lowry base.

D.a Lewis acid.

E.a Lewis base.

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Topic: Transition Metals and Coordination Compounds

32. 10.0 mL of a 0.100 mol/L solution of a metal ion M²⁺ is mixed with 10.0 mL of a 0.100 mol/L solution of a ligand L. A reaction occurs in which the product is ML₃.

Approximately, what is the maximum concentration of ML₃²⁺, in mol/L, which could result from this reaction?

A. 0.100

B. 0.050

C. 0.033

D. 0.025

E. 0.017

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Topic: Transition Metals and Coordination Compounds

33. What is the coordination number of cobalt in the complex ion [Co(en)Cl₄]^–? (en = ethylenediamine)

A. 1

B. 2

C. 4

D. 6

E. 8

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34. The oxidation and coordination numbers of cobalt in the compound [Co(NH₃)₅Cl]Cl₂ are,respectively

A. 2 and 6.

B. 2 and 8.

C. 3 and 6.

D. 3 and 8.

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

35. In the compound K[Co(C₂O₄)₂(H₂O)₂] (where C₂O₄^2– = oxalate) the oxidation number and coordination number of cobalt are, respectively

A. –1 and 4.

B. –1 and 6.

C. 3 and 4.

D. 3 and 6.

E. 1 and 6.

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Topic: Transition Metals and Coordination Compounds

36. In the compound [Ni(en)₂(H₂O)₂]SO₄ (where en = ethylenediamine) the oxidation number and coordination number of nickel are, respectively

A. 2 and 6.

B. 4 and 6.

C. 6 and 6.

D. 2 and 4.

E. 4 and 4.

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Topic: Transition Metals and Coordination Compounds

37. When the ethylenediaminetetraacetate ion (EDTA^4–) forms a complex with a transition metal ion, how many electrons does it normally donate to the metal?

A. 4

B. 6

C. 8

D. 10

E. 12

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38. Give the systematic name for [Cu(NH₃)₄]Cl₂.

A. dichlorotetraamminecuprate(II)

B.tetraamminecopper(II) chloride

C.copper(II) ammonium chloride

D.tetraaminocopper(II) chloride

E.None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

39. The compound K₃[Fe(CN)₆] is used in calico printing and wool dyeing. Give its systematic name.

A. potassium iron(III) hexacyanate

B.tripotassium iron(III) hexacyanate

C.potassium hexacyanoferrate(III)

D.potassium hexacyanideferrate

E.None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

40. Give the systematic name for Cr(CO)₃(NH₃)₃.

A. chromiumtriaminotricarbonyl

B.triamminechromium carbonate

C.triamminetricarbonylchromate(0)

D.triamminetricarbonylchromium(0)

E.None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

41. Give the systematic name for [CoCl₃(H₂O)]^–.

A. cobalt(II) chloride monohydrate

B.aquatrichlorocobalt(II)

C.aquatrichlorocobaltate(II)

D.aquatrichlorocobaltite(I)

E.None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

42. Write the formula for pentaamminechlorocobalt(III) chloride.

A. [Co(NH₃)₅Cl]Cl

B.[Co(NH₃)₅Cl]Cl₂

C.[Co(NH₃)₅Cl]Cl₃

D.[Co(NH₃)₅Cl]Cl₄

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

43. Write the formula for diamminedichloroethylenediaminecobalt(III) bromide.

A.[CoCl₂(en)(NH₃)₂]Br

B.[CoCl₂(en)(NH₃)₂]Br₂

C.[CoCl₂(en)₂(NH₃)₂]Br

D.[CoCl₂(en)₂(NH3)₂]Br₂

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

44. Write the formula for sodium tetracyanonickelate(II).

A. Na[Ni(CN)₄]

B. Na[Ni(CN)₄]₂

C. Na₂[Ni(CN)₄]

D. Na₄[Ni(CN)₄]

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

45. Which of the following ligands could participate in linkage isomerism?

A. NH₃

B.H₂O

C.NH₄⁺

D.NO₂^–

E. ethylenediamine

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

46. Which of the following species could exist as isomers?

A.[Co(H₂O)₄Cl₂]⁺

B.[Pt(NH₃)Br₃]^–

C.[Pt(en)Cl₂]

D.[Pt(NH₃)₃Cl]⁺

E. None of these choices are correct.

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

47. Consider the following octahedral complex structures, each involving ethylene diamine and two different, unidentate ligands X and Y.

Which one, if any, of the following is a pair of optical isomers?

A. 1 and 2

B. 1 and 3

C. 1 and 4

D. 3 and 4

E. None of these choices are correct.

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

48. Consider the following octahedral complex structures, each involving ethylene diamine and two different, unidentate ligands X and Y.

Which one of the following statements about these structures is incorrect?

A. Structures 1 and 2 are optical isomers.

B. Structures 1 and 3 are optical isomers.

C. Structures 1 and 3 are different complexes.

D. Structures 1 and 4 are geometrical isomers.

E. Structures 3 and 4 are the same complex.

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

49. Consider the following structures (1 and 2 are octahedral; 3 and 4 are square planar).

Which one of the following statements about the above structures is correct?

A. 1 and 2 are superimposable.

B.1 and 2 are geometric isomers.

C.3 and 4 are structural isomers.

D.3 and 4 are optical isomers.

E.3 and 4 are geometric isomers.

Bloom's: 2. Understand

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

50. In a coordination compound involving a complex ion of square planar geometry, which of the following types of isomerism is/are never possible?

A. Geometric

B. Optical

C. Linkage

D. Coordination

E. More than one of these

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

51. According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a square planar complex?

A.d²sp

B.d²p²

C.dsp³

D.sp³

E.dsp²

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

52. According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

A.d²sp

B.dsp²

C.dsp³

D.sp³

E.d²p²

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

53. According to Valence Bond theory, in the square planar Ni(CN)₄^2– complex ion, the orbital hybridization pattern is

A.sp³.

B.dsp².

C.d²sp.

D.d²sp³.

E. None of these choices are correct.

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Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

54. The crystal field splitting energy, Δ,

A. is larger for tetrahedral complexes than for octahedral complexes.

B. depends on the metal but not on the ligand.

C. determines the color of a complex.

D. is larger for ionic ligands like chloride than for molecular ligands like carbon monoxide, CO.

E. determines the charge of a complex.

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

55. In the spectrochemical series, which one of the following ligands has the strongest field?

A.H₂O

B. CN^–

C. NH₃

D. OH^–

E. Cl^–

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

56. Which of the following ions could exist in either the high-spin or low-spin state in an octahedral complex?

A. Sc³⁺

B. Ni²⁺

C. Mn²⁺

D. Ti⁴⁺

E. Zn²⁺

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

57. Which of the following ions could exist in only the high-spin state in an octahedral complex?

A. Cr²⁺

B. Mn⁴⁺

C. Fe³⁺

D. Co³⁺

E. Ni²⁺

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

58. In the presence of a strong octahedral ligand field, the number of unpaired electrons in Co(III) will be

A. 0.

B. 2.

C. 4.

D. 6.

E. None of these choices are correct.

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

59. Which of the following octahedral complexes should have the largest crystal field splitting energy, Δ?

A. [Cr(H₂O)₆]³⁺

B. [Cr(SCN)₆]^3–

C. [Cr(NH₃)₆]³⁺

D. [Cr(CN)₆]^3–

E. [Cr(en)₃]³⁺ (en = ethylenediamine)

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

60. Which of the following ligands is most likely to form a low-spin octahedral complex with iron(III)?

A. Cl^‑

B H₂O

C. NH₃

D. OH^–

E. CO

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

61. Which of the following ligands is most likely to form a high spin octahedral complex with cobalt(II)?

A. CN^–

B. en (ethylenediamine)

C. NO₂^–

D. CO

E. I^­

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

62. Iron(III) forms an octahedral complex with the ligand CN^–. How many unpaired electrons are in the d orbitals of iron?

A. 1

B. 3

C. 5

D. 7

E. None of these choices are correct.

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Topic: Transition Metals and Coordination Compounds

63. How many unpaired electrons will there be in a high-spin octahedral complex of Fe(II)?

A. 0

B. 2

C. 4

D. 6

E. None of these choices are correct.

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Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

64. If a solution absorbs green light, what is its likely color?

A. red

B. violet

C. orange

D. yellow

E. blue

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Easy

Gradable: automatic

Subtopic: Crystal Field Theory

Topic: Transition Metals and Coordination Compounds

65. All atoms of the first transition series of elements have the ground state electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 10.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

66. The ground state electron configuration of a transition element atom cannot have more than one incomplete subshell.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

67. The M²⁺ ions of the first transition series of elements all have the general electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 8.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

68. The Cu²⁺ ion has 1 unpaired electron.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

69. Of the 3d transition series of elements, scandium has the greatest atomic radius.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

70. Of the 3d transition series of elements, zinc has the greatest atomic radius.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

71. The maximum oxidation state of an element in the first transition series never exceeds its group number.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

72. The inner transition series of elements arise from the filling of f orbitals.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Lanthanides and Actinides

Topic: Transition Metals and Coordination Compounds

73. All the actinide series of transition elements are radioactive.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Lanthanides and Actinides

Topic: Transition Metals and Coordination Compounds

74. The conversion of the chromate ion (CrO₄^2–) to the dichromate ion (Cr₂O₇^2–) is a redox process.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

75. The permanganate ion (MnO₄^–) is a powerful reducing agent.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Properties of Transition Metals

Topic: Transition Metals and Coordination Compounds

76. In complexes of transition metals, the maximum coordination number of the metal is equal to its number of d electrons.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

77. Octahedral complexes can exhibit geometric, optical, and linkage isomerism.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

78. Tetrahedral complexes can exhibit both optical and linkage isomerism.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

79. Square planar complexes can exhibit both geometric and optical isomerism.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Subtopic: Transition Metals and Coordination Compounds

80. Valence Bond theory rationalizes octahedral geometry by assuming a d²sp³ hybridization pattern.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

81. Which of the following statements about lanthanides and actinides is incorrect?

A. The +3 oxidation state is the most common for both lanthanides and actinides.

B. All of the actinide elements are radioactive.

C. All of the lanthanide elements occur in nature.

D. All of the actinide elements are artificially made.

E. Due to similarities in their chemical properties, the actinide elements are not easily separated from each other.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Lanthanides and Actinides

Topic: Transition Metals and Coordination Compounds

82. Which of the following complexes could have isomeric forms?

A. [Pt(NH₃)₃Cl]⁺

B. [Fe(CN)₆]₃⁺

C. [Pt(NH₃)Br₃]⁺

D. [Pt(en)Cl₂]

E. [Co(H₂O)₄Cl₂]⁺

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions)

Topic: Transition Metals and Coordination Compounds

Category # of Questions

Accessibility: Keyboard Navigation 79

Bloom's: 1. Remember 28

Bloom's: 2. Understand 27

Bloom's: 3. Apply 27

Difficulty: Easy 17

Difficulty: Hard 4

Difficulty: Medium 60

Difficulty: Medium 1

Gradable: automatic 82

Subtopic: Coordination Compounds (Naming, Structure, Properties, and Reactions) 34

Subtopic: Crystal Field Theory 11

Subtopic: Lanthanides and Actinides 3

Subtopic: Properties of Transition Metals 34

Subtopic: Transition Metals and Coordination Compounds 1

Topic: Transition Metals and Coordination Compounds 81