Question 1

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

Question 2

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. 
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.

Question 3

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] 
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]

Question 4

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) 
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)

Question 5

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+ 
A) Cr2+ 
B) Mn4+ 
C) Fe3+ 
D) Co3+ 
E) Ni2+

Question 6

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. 
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.

Question 7

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 8

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

Question 9

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

Accepted Answer

A) 1s22s22p63s23p64s13d9 
B) 1s22s22p63s23p64s14d9 
C) 1s22s22p63s23p64s23d8 
D) 1s22s22p63s23p64s24d8 
E) 1s22s22p63s23p63d10 
A) 1s22s22p63s23p64s13d9 
B) 1s22s22p63s23p64s14d9 
C) 1s22s22p63s23p64s23d8 
D) 1s22s22p63s23p64s24d8 
E) 1s22s22p63s23p63d10

Question 10

Which of the following will be paramagnetic?

Accepted Answer

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

Question 11

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

Accepted Answer

A) Red 
B) Violet 
C) Orange 
D) Yellow 
E) Blue 
A) Red 
B) Violet 
C) Orange 
D) Yellow 
E) Blue

Question 12

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

Accepted Answer

Question 13

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) -1 
A) +1 
B) +2 
C) +3 
D) -2 
E) -1

Question 14

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

Accepted Answer

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

Question 15

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) -1 
A) +1 
B) +2 
C) +3 
D) -2 
E) -1

Question 16

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

Question 17

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

Question 18

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

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]5d10 
A) [Kr]5s14d10 
B) [Kr]5s15d10 
C) [Kr]5s24d9 
D) [Kr]5s25d9 
E) [Kr]5d10

Question 20

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) 5 
A) 6 
B) 2 
C) 4 
D) 3 
E) 5

Exam 22: Coordination Chemistry

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

Which statement is correct about transition metals?

Write the formula for sodium tetracyanonickelate(II).

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

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

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,

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

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

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

Which of the following will be paramagnetic?

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

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

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

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

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

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

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

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

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

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

Chemistry: the Central Science

Atoms Molecules and Ions

Stoichiometry Ratios of Combination

Reactions in Aqueous Solutions

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I Basic Concepts

Chemical Bonding Ii Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy Free Energy and Equilibrium

Electrochemistry

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Environmental Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

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Filters

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

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,

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

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

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

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

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

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

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

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

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