Question 1

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

Accepted Answer

A) +1 
B) +2 
C) +3 
D) +4 
E) +6 
A) +1 
B) +2 
C) +3 
D) +4 
E) +6

Question 2

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?

Accepted Answer

A) d 2 sp 
B) d 2 p 2 
C) dsp 3 
D) sp 3 
E) dsp 2 
A) d 2 sp 
B) d 2 p 2 
C) dsp 3 
D) sp 3 
E) dsp 2

Question 3

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx, where x is an integer from 1 to 8.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A) MO 
B) M 2O 
C) M 2O 3 
D) MO 2 
E) MO 3 
A) MO 
B) M 2O 
C) M 2O 3 
D) MO 2 
E) MO 3

Question 5

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?

Accepted Answer

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. 
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.

Question 6

When the ethylenediaminetetraacetate ion (EDTA4-) forms a complex with a transition metal ion, how many electrons does it normally donate to the metal?

Accepted Answer

A) 4 
B) 6 
C) 8 
D) 10 
E) 12 
A) 4 
B) 6 
C) 8 
D) 10 
E) 12

Question 7

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

Accepted Answer

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

Question 8

Write the formula for pentaamminechlorocobalt(III) chloride.

Accepted Answer

A) [Co(NH 3)5Cl]Cl 
B) [Co(NH 3)5Cl]Cl 2 
C) [Co(NH 3)5Cl]Cl 3 
D) [Co(NH 3)5Cl]Cl 4 
E) None of these choices are correct. 
A) [Co(NH 3)5Cl]Cl 
B) [Co(NH 3)5Cl]Cl 2 
C) [Co(NH 3)5Cl]Cl 3 
D) [Co(NH 3)5Cl]Cl 4 
E) None of these choices are correct.

Question 9

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

Accepted Answer

A) 2 and 6. 
B) 4 and 6. 
C) 6 and 6. 
D) 2 and 4. 
E) 4 and 4. 
A) 2 and 6. 
B) 4 and 6. 
C) 6 and 6. 
D) 2 and 4. 
E) 4 and 4.

Question 10

The ground state electronic configuration of Zn2+ is

Accepted Answer

A) [Ar]4 s 23 d 8. 
B) [Ar]4 s 23 d 10. 
C) [Ar]4 s 13 d 9. 
D) [Ar]3 d 10. 
E) [Ar]3 d 8. 
A) [Ar]4 s 23 d 8. 
B) [Ar]4 s 23 d 10. 
C) [Ar]4 s 13 d 9. 
D) [Ar]3 d 10. 
E) [Ar]3 d 8.

Question 11

Which of the following will be paramagnetic?

Accepted Answer

A) V 5+ 
B) Ni 2+ 
C) Mn 7+ 
D) Ti 4+ 
E) Zn 
A) V 5+ 
B) Ni 2+ 
C) Mn 7+ 
D) Ti 4+ 
E) Zn

Question 12

Which of the following atoms has the biggest radius?

Accepted Answer

A) Ti 
B) Cr 
C) Fe 
D) Ni 
E) Zn 
A) Ti 
B) Cr 
C) Fe 
D) Ni 
E) Zn

Question 13

According to Valence Bond theory, in the square planar Ni(CN)42− complex ion, the orbital hybridization pattern is

Accepted Answer

A) sp 3. 
B) dsp 2. 
C) d 2 sp. 
D) d 2 sp 3. 
E) None of these choices are correct. 
A) sp 3. 
B) dsp 2. 
C) d 2 sp. 
D) d 2 sp 3. 
E) None of these choices are correct.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

Give the systematic name for [CoCl3(H2O)]-.

Accepted Answer

A) Cobalt(II)chloride monohydrate 
B) Aquatrichlorocobalt(II) 
C) Aquatrichlorocobaltate(II) 
D) Aquatrichlorocobaltite(I) 
E) None of these choices are correct. 
A) Cobalt(II)chloride monohydrate 
B) Aquatrichlorocobalt(II) 
C) Aquatrichlorocobaltate(II) 
D) Aquatrichlorocobaltite(I) 
E) None of these choices are correct.

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) Chromium(0) 
B) Chromium(II) 
C) Chromium(III) 
D) Chromium(IV) 
E) Chromium(VI) 
A) Chromium(0) 
B) Chromium(II) 
C) Chromium(III) 
D) Chromium(IV) 
E) Chromium(VI)

Question 18

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

Accepted Answer

A) [Cr(H 2O)6] 3+ 
B) [Cr(SCN)6] 3− 
C) [Cr(NH 3)6] 3+ 
D) [Cr(CN)6] 3− 
E) [Cr(en)3] 3+ (en = ethylenediamine) 
A) [Cr(H 2O)6] 3+ 
B) [Cr(SCN)6] 3− 
C) [Cr(NH 3)6] 3+ 
D) [Cr(CN)6] 3− 
E) [Cr(en)3] 3+ (en = ethylenediamine)

Question 19

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

Accepted Answer

A) Cr 2+ 
B) Mn 4+ 
C) Fe 3+ 
D) Co 3+ 
E) Ni 2+ 
A) Cr 2+ 
B) Mn 4+ 
C) Fe 3+ 
D) Co 3+ 
E) Ni 2+

Question 20

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Accepted Answer

A) True 
 B)False

Exam 23: Transition Elements and Their Coordination Compounds

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

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?

The M2+ ions of the first transition series of elements all have the general electronic configuration [Ar]4s23dx, where x is an integer from 1 to 8.

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

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?

When the ethylenediaminetetraacetate ion (EDTA4-) forms a complex with a transition metal ion, how many electrons does it normally donate to the metal?

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

Write the formula for pentaamminechlorocobalt(III) chloride.

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

The ground state electronic configuration of Zn2+ is

Which of the following will be paramagnetic?

Which of the following atoms has the biggest radius?

According to Valence Bond theory, in the square planar Ni(CN)42− complex ion, the orbital hybridization pattern is

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

Give the systematic name for [CoCl3(H2O)]-.

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

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

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

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

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and Reaction Direction

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

Nuclear Reactions and Their Applications

Filters

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.

When the ethylenediaminetetraacetate ion (EDTA⁴^-) forms a complex with a transition metal ion, how many electrons does it normally donate to the metal?

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

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

The ground state electronic configuration of Zn²⁺ is

According to Valence Bond theory, in the square planar Ni(CN)₄²⁻ complex ion, the orbital hybridization pattern is

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