The ground state electron configuration of Cr2+ is

A) [Ar]4s13d5 B) [Ar]4s23d4 C) [Ar]3d4 D) [Ar]4s13d3 E) [Ar]4s23d2 A) [Ar]4s13d5 B) [Ar]4s23d4 C) [Ar]3d4 D) [Ar]4s13d3 E) [Ar]4s23d2 C

What is the coordination number of cobalt in the complex ion [Co(en)Cl4]-? (en = ethylenediamine)

A) 1 B) 2 C) 4 D) 6 E) 8 A) 1 B) 2 C) 4 D) 6 E) 8

The oxidation and coordination numbers of cobalt in the compound [Co(NH3)5Cl]Cl2 are,respectively:

A) 2 and 6 B) 2 and 8 C) 3 and 6 D) 3 and 8 E) None of these choices is correct. A) 2 and 6 B) 2 and 8 C) 3 and 6 D) 3 and 8 E) None of these choices is correct.

Exam 22: The Transition Elements and Their Coordination Compounds

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Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH₃)₆³⁺.

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Question 1

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The three d electrons of the Cr(III)will occupy three 3d orbitals,singly.The remaining two 3d orbitals will be hybridized with the 4s and 4p orbitals,yielding six d²sp³ hybrid orbitals,which are used to accommodate the six lone pairs of the ammonia ligands.

In the spectrochemical series,which one of the following ligands has the strongest field?

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Question 2

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The ground state electron configuration of Cr²⁺ is

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Question 3

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Consider the following octahedral complex structures,each involving ethylene diamine and two different,unidentate ligands X and Y. Which one of the following statements about these structures is incorrect?

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Question 4

Of the 3d transition series of elements,scandium has the greatest atomic radius.

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Question 5

Write the formula for sodium tetracyanonickelate(II).

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Question 6

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

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Question 7

Tetrahedral complexes can exhibit both optical and linkage isomerism.

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Question 8

Which of the following species could exist as isomers?

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Question 9

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

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Question 10

The crystal field splitting energy, $\Delta$ ,

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Question 11

The compound Rh(CO)(H)(PH₃)₂ forms cis and trans isomers.Use this information to predict the geometry of this complex,and draw the geometric isomers.

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Question 12

Which of the following transition elements will form an ion with the largest oxidation number?

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Question 13

In a coordination compound involving a complex ion of square planar geometry,which of the following types of isomerism is/are never possible?

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Question 14

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

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Question 15

Which of the following will be the strongest oxidizing agent?

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Question 16

What is the coordination number of cobalt in the complex ion [Co(en)Cl₄]^-? (en = ethylenediamine)

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Question 17

According to valence bond theory,what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

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Question 18

The oxidation and coordination numbers of cobalt in the compound [Co(NH₃)₅Cl]Cl₂ are,respectively:

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Question 19

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

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Question 20

Showing 1 - 20 of 72

Exam 22: The Transition Elements and Their Coordination Compounds

Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH3)63+.

In the spectrochemical series,which one of the following ligands has the strongest field?

The ground state electron configuration of Cr2+ is

Consider the following octahedral complex structures,each involving ethylene diamine and two different,unidentate ligands X and Y. Which one of the following statements about these structures is incorrect?

Of the 3d transition series of elements,scandium has the greatest atomic radius.

Write the formula for sodium tetracyanonickelate(II).

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

Tetrahedral complexes can exhibit both optical and linkage isomerism.

Which of the following species could exist as isomers?

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

The crystal field splitting energy, Δ\DeltaΔ ,

The compound Rh(CO)(H)(PH3)2 forms cis and trans isomers.Use this information to predict the geometry of this complex,and draw the geometric isomers.

Which of the following transition elements will form an ion with the largest oxidation number?

In a coordination compound involving a complex ion of square planar geometry,which of the following types of isomerism is/are never possible?

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

Which of the following will be the strongest oxidizing agent?

What is the coordination number of cobalt in the complex ion [Co(en)Cl4]-? (en = ethylenediamine)

According to valence bond theory,what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

The oxidation and coordination numbers of cobalt in the compound [Co(NH3)5Cl]Cl2 are,respectively:

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

Keys to the Study of Chemistry

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 Solutions

The Main-Group Elements: Applying Principles of Bonding and Structure

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 the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

Nuclear Reactions and Their Applications

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Apply the valence bond theory to predict the electronic structure and hybridization pattern of chromium in the complex ion Cr(NH₃)₆³⁺.

The ground state electron configuration of Cr²⁺ is

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

The crystal field splitting energy, $\Delta$ ,

The compound Rh(CO)(H)(PH₃)₂ forms cis and trans isomers.Use this information to predict the geometry of this complex,and draw the geometric isomers.

What is the coordination number of cobalt in the complex ion [Co(en)Cl₄]^-? (en = ethylenediamine)

The oxidation and coordination numbers of cobalt in the compound [Co(NH₃)₅Cl]Cl₂ are,respectively:

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