Question 1

Which is a third transition series element?

Accepted Answer

A) Al 
B) Mg 
C) Pr 
D) Pt 
A) Al 
B) Mg 
C) Pr 
D) Pt

Question 2

What statement is most inconsistent with the chemistry of transition elements?

Accepted Answer

A) Bromide,chloride and iodide stabilize the higher oxidation states of the transition elements. 
B) Early transition metal ions with the metal in its lowest oxidation state are good reducing agents. 
C) Ions that have transition metal in their highest oxidation state tend to be good oxidizing agents. 
D) The stability of the higher oxidation states increases down a periodic group. 
A) Bromide,chloride and iodide stabilize the higher oxidation states of the transition elements. 
B) Early transition metal ions with the metal in its lowest oxidation state are good reducing agents. 
C) Ions that have transition metal in their highest oxidation state tend to be good oxidizing agents. 
D) The stability of the higher oxidation states increases down a periodic group.

Question 3

The first transition series metals are shown below.  
-Which metal exhibits the highest oxidation state in its compounds?

Accepted Answer

A) Sc 
B) Cr 
C) Mn 
D) Zn 
A) Sc 
B) Cr 
C) Mn 
D) Zn

Question 4

The oxidation state of palladium in K2[PdCl4] is ________.

Accepted Answer

Question 5

Which is not a characteristic reaction of chromium metal or chromium(II)ion?

Accepted Answer

A) Cr(s)+ 2 H+(aq)→ Cr2+(aq)+ H2(g) 
B) 4 Cr2+(aq)+ O2(g)+ 4 H+(aq)→ 4 Cr3+(aq)+ 2 H2O(l) 
C) Cr(OH)2(s)+ 2 H3O+(aq)→ Cr2+(aq)+ 4 H2O(l) 
D) Cr(OH)2(s)+ OH-(aq)→ Cr(OH)3-(aq) 
A) Cr(s)+ 2 H+(aq)→ Cr2+(aq)+ H2(g) 
B) 4 Cr2+(aq)+ O2(g)+ 4 H+(aq)→ 4 Cr3+(aq)+ 2 H2O(l) 
C) Cr(OH)2(s)+ 2 H3O+(aq)→ Cr2+(aq)+ 4 H2O(l) 
D) Cr(OH)2(s)+ OH-(aq)→ Cr(OH)3-(aq)

Question 6

How many d electrons are there in MnO4-?

Accepted Answer

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

Question 7

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

Accepted Answer

A) Cr 
B) Fe3+ 
C) Co3+ 
D) Ni3+ 
A) Cr 
B) Fe3+ 
C) Co3+ 
D) Ni3+

Question 8

Which one of the following complexes is considered to be tetrahedral?

Accepted Answer

A) [FeCl4]- 
B) [Ni(CN)4]2- 
C) [PtCl4]2- 
D) [PdCl2(NH3)2] 
A) [FeCl4]- 
B) [Ni(CN)4]2- 
C) [PtCl4]2- 
D) [PdCl2(NH3)2]

Question 9

The first transition series metals are shown below.  
-Based on the variation in Zeff,which M2+ ion should be the strongest reducing agent?

Accepted Answer

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

Question 10

What is the highest possible oxidation state for manganese?

Accepted Answer

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

Question 11

Which one of the following compounds is not consistent with the terminology of a complex?

Accepted Answer

A) [Cu(NH3)4]2+ 
B) CuSO4 ∙ 5H2O 
C) K3[Fe(CN)6] 
D) [Cr(NH3)6]Cl3 
A) [Cu(NH3)4]2+ 
B) CuSO4 ∙ 5H2O 
C) K3[Fe(CN)6] 
D) [Cr(NH3)6]Cl3

Question 12

What is the oxidation state of the Cr atom in [Ni(en)3]3[Cr(CN)6]2?

Accepted Answer

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

Question 13

The second transition series metals are shown below.  
-Which has the highest melting point?

Accepted Answer

A) Y 
B) Mo 
C) Tc 
D) Cd 
A) Y 
B) Mo 
C) Tc 
D) Cd

Question 14

-Which element indicated on the above periodic table has the electron configuration [Kr] 4d5 5s2?

Accepted Answer

A) element A 
B) element B 
C) element C 
D) element D 
A) element A 
B) element B 
C) element C 
D) element D

Question 15

The third transition series metals are shown below.  
-Which has the smallest atomic radius?

Accepted Answer

A) La 
B) W 
C) Os 
D) Hg 
A) La 
B) W 
C) Os 
D) Hg

Question 16

The compounds [Cr(H2O)6]Cl3 and [CrCl3(H2O)3] ∙ 3H2O are examples of ________.

Accepted Answer

A) diastereoisomers 
B) enantiomers 
C) ionization isomers 
D) linkage isomers 
A) diastereoisomers 
B) enantiomers 
C) ionization isomers 
D) linkage isomers

Question 17

The second transition series metals are shown below.  
-Which has the lowest density?

Accepted Answer

A) Y 
B) Mo 
C) Rh 
D) Cd 
A) Y 
B) Mo 
C) Rh 
D) Cd

Question 18

Which one of the following objects is chiral?

Accepted Answer

A) a bottle 
B) a chair 
C) a glass 
D) a glove 
A) a bottle 
B) a chair 
C) a glass 
D) a glove

Question 19

Consider the following isomers of [Co(NHS1U1B13S1U1B0)S1U1B14S1U1B0BrS1U1B12S1U1B0]S1U1P1+S1S1P0.The black sphere represents Co,gray spheres represent NHS1U1B13S1U1B0,and unshaded spheres represent Br.  
-Which are trans-isomers?

Accepted Answer

A) isomers (1)and (2) 
B) isomers (1)and (3) 
C) isomers (2)and (4) 
D) isomers (3)and (4) 
A) isomers (1)and (2) 
B) isomers (1)and (3) 
C) isomers (2)and (4) 
D) isomers (3)and (4)

Question 20

The number of unpaired electrons in Co(NH3)63+ is ________.

Accepted Answer

Exam 20: Transition Elements and Coordination Chemistry

Which is a third transition series element?

What statement is most inconsistent with the chemistry of transition elements?

The first transition series metals are shown below. -Which metal exhibits the highest oxidation state in its compounds?

The oxidation state of palladium in K2[PdCl4] is ________.

Which is not a characteristic reaction of chromium metal or chromium(II)ion?

How many d electrons are there in MnO4-?

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

Which one of the following complexes is considered to be tetrahedral?

The first transition series metals are shown below. -Based on the variation in Zeff,which M2+ ion should be the strongest reducing agent?

What is the highest possible oxidation state for manganese?

Which one of the following compounds is not consistent with the terminology of a complex?

What is the oxidation state of the Cr atom in [Ni(en)3]3[Cr(CN)6]2?

The second transition series metals are shown below. -Which has the highest melting point?

-Which element indicated on the above periodic table has the electron configuration [Kr] 4d5 5s2?

The third transition series metals are shown below. -Which has the smallest atomic radius?

The compounds [Cr(H2O)6]Cl3 and [CrCl3(H2O)3] ∙ 3H2O are examples of ________.

The second transition series metals are shown below. -Which has the lowest density?

Which one of the following objects is chiral?

Consider the following isomers of [Co(NH3)4Br2]+.The black sphere represents Co,gray spheres represent NH3,and unshaded spheres represent Br. -Which are trans-isomers?

The number of unpaired electrons in Co(NH3)63+ is ________.

Chemistry: Matter and Measurement

Atoms, molecules, and Ions

Formulas, equations, and Moles

Reactions in Aqueous Solutions

Periodicity and the Atomic Structure of Atoms

Ionic Bonds and Some Main-Group Chemistry

Covalent Bonds and Molecular Structure

Thermochemistry: Chemical Energy

Gases: Their Properties and Behavior

Liquids,solids,and Phase Changes

Solutions and Their Properties

Chemical Kinetics

Chemical Equilibrium

Aqueous Equilibria: Acids and Bases

Applications of Aqueous Equilibria

Thermodynamics: Entropy, free Energy, and Equilibrium

Electrochemistry

Hydrogen, oxygen, and Water

The Main-Group Elements

Metals and Solid-State Materials

Nuclear Chemistry

Organic and Biological Chemistry

Filters

The oxidation state of palladium in K₂[PdCl₄] is ________.

How many d electrons are there in MnO₄^-?

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

The first transition series metals are shown below. -Based on the variation in Z_eff,which M²⁺ ion should be the strongest reducing agent?

What is the oxidation state of the Cr atom in [Ni(en)₃]₃[Cr(CN)₆]₂?

-Which element indicated on the above periodic table has the electron configuration [Kr] 4d⁵ 5s²?

The compounds [Cr(H₂O)₆]Cl₃ and [CrCl₃(H₂O)₃] ∙ 3H₂O are examples of ________.

Consider the following isomers of [Co(NH₃)₄Br₂]⁺.The black sphere represents Co,gray spheres represent NH₃,and unshaded spheres represent Br. -Which are trans-isomers?

The number of unpaired electrons in Co(NH₃)₆³⁺ is ________.