Question 1

Which of the following complexes is chiral?

Accepted Answer

A)  trans-[Cr(en)2Cl2]+  
B)  cis-[Cr(en)2Cl2]+  
C)  cis-[Cr(NH3)4Cl2]+  
D)  trans-[Cr(en)2(NH3)Cl]2+  
E)  [Co(OH2)3(NH3)3]3+  
A)  trans-[Cr(en)2Cl2]+  
B)  cis-[Cr(en)2Cl2]+  
C)  cis-[Cr(NH3)4Cl2]+  
D)  trans-[Cr(en)2(NH3)Cl]2+  
E)  [Co(OH2)3(NH3)3]3+

Question 2

What is the shape of Pt(NH3)2Cl2 assuming it has two non-bonded pairs of electrons?

Accepted Answer

A)  Octahedral 
B)  Tetrahedral 
C)  Triangular pyramidal 
D)  Square planar 
E)  Trigonal bipyramidal. 
A)  Octahedral 
B)  Tetrahedral 
C)  Triangular pyramidal 
D)  Square planar 
E)  Trigonal bipyramidal.

Question 3

In the d-block elements, the third-row metallic radii are about the same as the second-row radii because of

Accepted Answer

A)  the lanthanide contraction. 
B)  the third-row metallic radii are greater than the second-row radii. 
C)  the increased number of d-electrons. 
D)  greater shielding of f-electrons. 
E)  greater shielding of d-electrons. 
A)  the lanthanide contraction. 
B)  the third-row metallic radii are greater than the second-row radii. 
C)  the increased number of d-electrons. 
D)  greater shielding of f-electrons. 
E)  greater shielding of d-electrons.

Question 4

How many unpaired electrons are predicted for [Mn(CN)6]4-?

Accepted Answer

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

Question 5

Which of the following is the formula of potassium hexacyanoferrate(II)?

Accepted Answer

A)  [Fe(CN)6] 
B)  K[Fe(CN)6] 
C)  K2[Fe(CN)6] 
D)  K3[Fe(CN)6] 
E)  K4[Fe(CN)6] 
A)  [Fe(CN)6] 
B)  K[Fe(CN)6] 
C)  K2[Fe(CN)6] 
D)  K3[Fe(CN)6] 
E)  K4[Fe(CN)6]

Question 6

The metalloproteins hemoglobin and vitamin B12 contain the metals

Accepted Answer

A)  iron and zinc, respectively. 
B)  cobalt and nickel, respectively. 
C)  iron and Mo, respectively. 
D)  manganese and iron, respectively. 
E)  iron and cobalt, respectively. 
A)  iron and zinc, respectively. 
B)  cobalt and nickel, respectively. 
C)  iron and Mo, respectively. 
D)  manganese and iron, respectively. 
E)  iron and cobalt, respectively.

Question 7

When one mole of trans-tetraamminedichlorocobalt(III) chloride dissolves in water,How many moles of ions does it produce?

Accepted Answer

A)  1 mole of ions. 
B)  2 moles of ions. 
C)  3 moles of ions. 
D)  4 moles of ions. 
A)  1 mole of ions. 
B)  2 moles of ions. 
C)  3 moles of ions. 
D)  4 moles of ions.

Question 8

Which of the following complexes is colorless?

Accepted Answer

A)  Fe(OH2)62+ 
B)  Cu(OH2)6+ 
C)  Cu(OH2)62+ 
D)  Ti(OH2)63+ 
A)  Fe(OH2)62+ 
B)  Cu(OH2)6+ 
C)  Cu(OH2)62+ 
D)  Ti(OH2)63+

Question 9

Vanadium metal is produced by the

Accepted Answer

A)  reduction of VOCl2(s) with magnesium. 
B)  reduction of vanadium(V) oxide with calcium. 
C)  reaction of V2O5(s) with coke. 
D)  decomposition of VCl4(g) at high temperature. 
E)  roasting of VO2(s). 
A)  reduction of VOCl2(s) with magnesium. 
B)  reduction of vanadium(V) oxide with calcium. 
C)  reaction of V2O5(s) with coke. 
D)  decomposition of VCl4(g) at high temperature. 
E)  roasting of VO2(s).

Question 10

One mole of pentaamminechlorocobalt(III)chloride dissolves in water to give _____ moles of ions.

Accepted Answer

The answer of One mole of pentaamminechlorocobalt(III)chloride dissolves in water...

Question 11

Which complex,[CoBr4]21- or [Co(NH3)5]3+,is the more highly colored?

Accepted Answer

[CoBr<sub>

Question 12

Why is $\Delta$T is always greater than $\Delta$O?

Accepted Answer

It isn't;

Question 13

The d-metals can be mixed together to form a wide range of alloys because

Accepted Answer

A)  the d-electrons interact strongly with each other. 
B)  the d-metals have a wide range of metal radii. 
C)  the nucleus is well shielded by the d-electrons. 
D)  the range of d-metal radii is not very great. 
E)  the d-metals have low melting points. 
A)  the d-electrons interact strongly with each other. 
B)  the d-metals have a wide range of metal radii. 
C)  the nucleus is well shielded by the d-electrons. 
D)  the range of d-metal radii is not very great. 
E)  the d-metals have low melting points.

Question 14

Which of the following complexes is (are) chiral?

Accepted Answer

A)  1 
B)  4 
C)  None of the complexes is chiral. 
D)  2 
E)  2 and 3 
A)  1 
B)  4 
C)  None of the complexes is chiral. 
D)  2 
E)  2 and 3

Question 15

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate, FeO42-.How many unpaired electrons are in this complex?

Accepted Answer

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

Question 16

Which of the following has the largest atomic radius?

Accepted Answer

A)  Ru 
B)  Pt 
C)  Mo 
D)  Cd 
E)  Zn 
A)  Ru 
B)  Pt 
C)  Mo 
D)  Cd 
E)  Zn

Question 17

Which of the following complex ions is likely to absorb at about 400 nm?

Accepted Answer

A)  [Cr(OH2)6]3+  
B)  [Cr(CN)6]3- 
C)  [CrF6]3- 
D)  [CrCl6]3- 
E)  [Cr(ox)3]3- 
A)  [Cr(OH2)6]3+  
B)  [Cr(CN)6]3- 
C)  [CrF6]3- 
D)  [CrCl6]3- 
E)  [Cr(ox)3]3-

Question 18

For the complex ion[Co(en)(NH3)2(OH2)Cl]2+, there are four possible geometric isomers.How many of these geometric isomers are optically active?

Accepted Answer

A)  none 
B)  3 
C)  all of them 
D)  1 
E)  2 
A)  none 
B)  3 
C)  all of them 
D)  1 
E)  2

Question 19

Which of the following complexes is (are) chiral?

Accepted Answer

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

Question 20

The compound Co(en)2(NO2)2Cl has been prepared in a number of isomeric forms.All the forms have the nitrite ion coordinated trough the nitrogen atom.Draw the structure of each isomeric form.
a)One form is optically inactive and does not react with AgNO3 or en.
b)A second form reacts with AgNO3 but not with en and is also optically inactive.
c)A third form is optically active and reacts with both AgNO3 and en.

Accepted Answer

(a)trans-chloronitrobis(ethyle

Which of the following complexes is chiral?

What is the shape of Pt(NH₃)₂Cl₂ assuming it has two non-bonded pairs of electrons?

In the d-block elements, the third-row metallic radii are about the same as the second-row radii because of

How many unpaired electrons are predicted for [Mn(CN)₆]⁴^-?

Which of the following is the formula of potassium hexacyanoferrate(II)?

The metalloproteins hemoglobin and vitamin B₁₂ contain the metals

When one mole of trans-tetraamminedichlorocobalt(III) chloride dissolves in water,How many moles of ions does it produce?

Which of the following complexes is colorless?

Vanadium metal is produced by the

One mole of pentaamminechlorocobalt(III)chloride dissolves in water to give _____ moles of ions.

Which complex,[CoBr₄]²1^- or [Co(NH₃)₅]³⁺,is the more highly colored?

Why is $\Delta$ _T is always greater than $\Delta$ _O?

The d-metals can be mixed together to form a wide range of alloys because

Which of the following complexes is (are) chiral?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate, FeO₄²^-.How many unpaired electrons are in this complex?

Which of the following has the largest atomic radius?

Which of the following complex ions is likely to absorb at about 400 nm?

For the complex ion[Co(en)(NH₃)₂(OH₂)Cl]²⁺, there are four possible geometric isomers.How many of these geometric isomers are optically active?

Which of the following complexes is (are) chiral?

Atoms

Molecules

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Thermodynamics

Equilibrium

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The Main-Group Elements

Nuclear Chemistry

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Exam 9: The D-Block Elements

Which of the following complexes is chiral?

What is the shape of Pt(NH3)2Cl2 assuming it has two non-bonded pairs of electrons?

In the d-block elements, the third-row metallic radii are about the same as the second-row radii because of

How many unpaired electrons are predicted for [Mn(CN)6]4-?

Which of the following is the formula of potassium hexacyanoferrate(II)?

The metalloproteins hemoglobin and vitamin B12 contain the metals

When one mole of trans-tetraamminedichlorocobalt(III) chloride dissolves in water,How many moles of ions does it produce?

Which of the following complexes is colorless?

Vanadium metal is produced by the

One mole of pentaamminechlorocobalt(III)chloride dissolves in water to give _____ moles of ions.

Which complex,[CoBr4]21- or [Co(NH3)5]3+,is the more highly colored?

Why is Δ\DeltaΔ T is always greater than Δ\DeltaΔ O?

The d-metals can be mixed together to form a wide range of alloys because

Which of the following complexes is (are) chiral?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate, FeO42-.How many unpaired electrons are in this complex?

Which of the following has the largest atomic radius?

Which of the following complex ions is likely to absorb at about 400 nm?

For the complex ion[Co(en)(NH3)2(OH2)Cl]2+, there are four possible geometric isomers.How many of these geometric isomers are optically active?

Which of the following complexes is (are) chiral?

Atoms

Molecules

States of Matter

Thermodynamics

Equilibrium

Reactions

Kinetics

The Main-Group Elements

Nuclear Chemistry

Organic Chemistry

Filters

What is the shape of Pt(NH₃)₂Cl₂ assuming it has two non-bonded pairs of electrons?

How many unpaired electrons are predicted for [Mn(CN)₆]⁴^-?

The metalloproteins hemoglobin and vitamin B₁₂ contain the metals

Which complex,[CoBr₄]²1^- or [Co(NH₃)₅]³⁺,is the more highly colored?

Why is $\Delta$ _T is always greater than $\Delta$ _O?

A complex that is the subject of a great deal of research because of its high oxidation potential is ferrate, FeO₄²^-.How many unpaired electrons are in this complex?

For the complex ion[Co(en)(NH₃)₂(OH₂)Cl]²⁺, there are four possible geometric isomers.How many of these geometric isomers are optically active?