Question 1

In the complex ion [Cr(C2O4) 2(H2O) 2]-,what is the oxidation number of Cr?

Accepted Answer

A)  +1
B)  +2
C)  +3
D)  -2
E)  -1F) A) and B)
G) B) and E)

Question 2

What is the electron configuration of a ground-state Fe2+ ion?

Accepted Answer

A)  [Ar]3d5
B)  [Ar]4s13d5
C)  [Ar]3d6
D)  [Ar]4s14d5
E)  [Ar]4d6F) A) and B)
G) C) and E)

Question 3

How many donor atoms enable EDTA to form a stable complex ion with lead?

Accepted Answer

A)  6
B)  2
C)  4
D)  3
E)  5F) A) and D)
G) A) and B)

Question 4

What is the label used for an isomer which is levorotatory?

Accepted Answer

The answer of What is the label used for an...

Question 5

What is the electron configuration of a ground-state Zn2+ ion?

Accepted Answer

A)  1s22s22p63s23p64s13d9
B)  1s22s22p63s23p64s14d9
C)  1s22s22p63s23p64s23d8
D)  1s22s22p63s23p64s24d8
E)  1s22s22p63s23p63d10F) C) and D)
G) All of the above

Question 6

The best name for K[Cr(NH3) 2Cl2(CN) 2] is

Accepted Answer

A)  potassium diamminedichlorodicyanochromate(III) .
B)  potassium diamminedichlorodicyanochromium(III) .
C)  potassium diamminedichlorochromatium(III) cyanide.
D)  potassium diamminedichlorochromate(II) cyanide.
E)  potassium diamminedichlorodicyanochromate(II) .F) A) and B)
G) B) and D)

Question 7

Which of the following will be paramagnetic?

Accepted Answer

A)  V5+
B)  Ni2+
C)  Mn7+
D)  Ti4+
E)  Zn2+F) B) and D)
G) C) and D)

Question 8

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

Accepted Answer

A)  Sc3+
B)  Ni2+
C)  Mn2+
D)  Ti4+
E)  Zn2+F) B) and C)
G) A) and B)

Question 9

The atom in a ligand that is bound directly to the metal atom is known as the ______ _______.

Accepted Answer

The answer of The atom in a ligand that is...

Question 10

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

Accepted Answer

A)  Red
B)  Violet
C)  Orange
D)  Yellow
E)  BlueF) B) and D)
G) B) and E)

Question 11

What is the systematic name for Cr(CO) 3(NH3) 3?

Accepted Answer

A)  chromiumtriaminotricarbonyl
B)  triamminechromium carbonate
C)  triamminetricarbonylchromate(0) 
D)  triamminetricarbonylchromium(0) 
E)  tris(amino) tris(carbonyl) chromiumF) C) and D)
G) A) and B)

Question 12

What geometry is particularly common for complexes of d10 metal ions?

Accepted Answer

Question 13

The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) 3]3+ are,respectively,

Accepted Answer

A)  2 and 2.
B)  1 and 1.
C)  3 and 2.
D)  1 and 2.
E)  2 and 4.F) C) and E)
G) B) and C)

Question 14

What is the systematic name for [Ru(NH3) 2(en) ](NO3) 2?

Accepted Answer

A)  (ethylenediamine) diammineruthenium(II) nitrate
B)  diamminebis(ethylenediamine) ruthenium(III) nitrate
C)  diammine(ethylenediamine) ruthenium(II) nitrate
D)  diammine(ethylenediamine) nitratoruthenium(III) 
E)  bis(ethylene) diamminenitratoruthenate(II) F) C) and E)
G) C) and D)

Question 15

Write the formula for sodium tetracyanonickelate(II) .

Accepted Answer

A)  Na[Ni(CN) 4]
B)  Na[Ni(CN) 4]2
C)  Na2[Ni(CN) 4]
D)  Na4[Ni(CN) 4]
E)  Na[(NiCN) 4]F) A) and C)
G) A) and B)

Question 16

In the complex ion [Co(en) 2Br2]+,what is the oxidation number of Co?

Accepted Answer

A)  +1
B)  +2
C)  +3
D)  -2
E)  -1F) B) and C)
G) A) and C)

Question 17

In the coordination compound [Cr(NH3)  (en) 2Cl]Br2,the coordination number (C.N.) and oxidation number (O.N.) of the metal atom are,respectively,

Accepted Answer

A)  C.N.= 6; O.N.= +4.
B)  C.N.= 6; O.N.= +3.
C)  C.N.= 5; O.N.= +2.
D)  C.N.= 4; O.N.= +2.
E)  C.N.= 4; O.N.= +3.F) All of the above
G) A) and C)

Question 18

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

Accepted Answer

A)  Cr2+
B)  Mn4+
C)  Fe3+
D)  Co3+
E)  Ni2+F) A) and E)
G) All of the above

Question 19

What is the electron configuration of a ground-state Ag atom?

Accepted Answer

A)  [Kr]5s14d10
B)  [Kr]5s15d10
C)  [Kr]5s24d9
D)  [Kr]5s25d9
E)  [Kr]5d10F) B) and E)
G) A) and E)

Question 20

Which statement is correct about transition metals?

Accepted Answer

A)  They have incompletely filled d subshells.
B)  They form ions with incompletely filled d subshells.
C)  They form paramagnetic compounds.
D)  They have catalytic activity.
E)  All of the answers are correct.F) C) and E)
G) A) and E)

Exam 22: Coordination Chemistry

What is the systematic name for [Ru(NH3) 2(en) ](NO3) 2?

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In the complex ion [Cr(C2O4) 2(H2O) 2]-,what is the oxidation number of Cr?

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What is the electron configuration of a ground-state Ag atom?

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

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Write the formula for sodium tetracyanonickelate(II) .

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What geometry is particularly common for complexes of d10 metal ions?

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Which of the following will be paramagnetic?

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What is the label used for an isomer which is levorotatory?

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In the complex ion [Co(en) 2Br2]+,what is the oxidation number of Co?

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How many donor atoms enable EDTA to form a stable complex ion with lead?

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What is the electron configuration of a ground-state Zn2+ ion?

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

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Which statement is correct about transition metals?

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In the coordination compound [Cr(NH3) (en) 2Cl]Br2,the coordination number (C.N.) and oxidation number (O.N.) of the metal atom are,respectively,

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The best name for K[Cr(NH3) 2Cl2(CN) 2] is

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

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The atom in a ligand that is bound directly to the metal atom is known as the ______ _______.

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What is the electron configuration of a ground-state Fe2+ ion?

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What is the systematic name for Cr(CO) 3(NH3) 3?

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The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) 3]3+ are,respectively,

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What is the systematic name for [Ru(NH₃) ₂(en) ](NO₃) ₂?

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In the complex ion [Cr(C₂O₄) ₂(H₂O) ₂]^-,what is the oxidation number of Cr?

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What geometry is particularly common for complexes of d¹⁰ metal ions?

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In the complex ion [Co(en) ₂Br₂]⁺,what is the oxidation number of Co?

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What is the electron configuration of a ground-state Zn²⁺ ion?

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In the coordination compound [Cr(NH₃) (en) ₂Cl]Br₂,the coordination number (C.N.) and oxidation number (O.N.) of the metal atom are,respectively,

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The best name for K[Cr(NH₃) ₂Cl₂(CN) ₂] is

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The atom in a ligand that is bound directly to the metal atom is known as the _.

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What is the electron configuration of a ground-state Fe²⁺ ion?

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What is the systematic name for Cr(CO) ₃(NH₃) ₃?

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The numbers of geometrical isomers and optical isomers of the complex ion [Co(en) ₃]³⁺ are,respectively,

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