The ground state electronic 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.

The compound K3[Fe(CN)6] is used in calico printing and wool dyeing. Give its systematic name.

A) potassium iron(III) hexacyanate B) tripotassium iron(III) hexacyanate C) potassium hexacyanoferrate(III) D) potassium hexacyanideferrate E) none of the above A) potassium iron(III) hexacyanate B) tripotassium iron(III) hexacyanate C) potassium hexacyanoferrate(III) D) potassium hexacyanideferrate E) none of the above

According to Valence Bond theory, in the square planar Ni(CN)42- complex ion, the orbital hybridization pattern is

A) sp3. B) dsp2. C) d2sp. D) d2sp3. E) none of the above. A) sp3. B) dsp2. C) d2sp. D) d2sp3. E) none of the above.

How many unpaired electrons are there in the Fe3+ ion?

A) 5 B) 4 C) 3 D) 2 E) 1 A) 5 B) 4 C) 3 D) 2 E) 1

Exam 23: The Transition Elements and Their Coordination Compounds

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Consider the following structures (1 and 2 are octahedral; 3 and 4 are square planar). Which one of the following statements about the above structures is correct?

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Question 41

The ground state electronic configuration of Cr²⁺ is

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Question 42

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

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Question 43

Which of the following transition elements can have an oxidation number of +7?

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Question 44

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

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Question 45

The compound K₃[Fe(CN)₆] is used in calico printing and wool dyeing. Give its systematic name.

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Question 46

Why is the +2 oxidation state so common among transition elements?

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Question 47

What is the highest possible oxidation state for molybdenum, Mo?

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Question 48

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

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Question 49

According to Valence Bond theory, in the square planar Ni(CN)₄^2- complex ion, the orbital hybridization pattern is

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Question 50

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 51

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

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Question 52

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

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Question 53

Which of the following ions is most likely to form colored compounds?

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Question 54

All atoms of the first transition series of elements have the ground state electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 10.

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Question 55

How many unpaired electrons are there in the Fe³⁺ ion?

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Question 56

The d_xy and the d_x²_-_y²orbitals both lie in the xy plane, yet for a metal ion in an octahedral complex the energy of the d_xy orbital is lower than that of the d_x²_-_y²orbital. Explain this using the arguments of crystal field theory.

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Question 57

The most common oxidation state for ions of the transition elements is

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Question 58

Which of the following will be diamagnetic?

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Question 59

All the actinide series of transition elements are radioactive.

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Question 60

Showing 41 - 60 of 92

Exam 23: The Transition Elements and Their Coordination Compounds

Consider the following structures (1 and 2 are octahedral; 3 and 4 are square planar). Which one of the following statements about the above structures is correct?

The ground state electronic configuration of Cr2+ is

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

Which of the following transition elements can have an oxidation number of +7?

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

The compound K3[Fe(CN)6] is used in calico printing and wool dyeing. Give its systematic name.

Why is the +2 oxidation state so common among transition elements?

What is the highest possible oxidation state for molybdenum, Mo?

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

According to Valence Bond theory, in the square planar Ni(CN)42- complex ion, the orbital hybridization pattern is

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

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

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

Which of the following ions is most likely to form colored compounds?

All atoms of the first transition series of elements have the ground state electronic configuration [Ar]4s23dx, where x is an integer from 1 to 10.

How many unpaired electrons are there in the Fe3+ ion?

The dxy and the dx2-y2 orbitals both lie in the xy plane, yet for a metal ion in an octahedral complex the energy of the dxy orbital is lower than that of the dx2-y2orbital. Explain this using the arguments of crystal field theory.

The most common oxidation state for ions of the transition elements is

Which of the following will be diamagnetic?

All the actinide series of transition elements are radioactive.

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The 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 Mixtures: Solutions and Colloids

Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

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

The Elements in Nature and Industry

Nuclear Reactions and Their Applications

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The ground state electronic configuration of Cr²⁺ is

The compound K₃[Fe(CN)₆] is used in calico printing and wool dyeing. Give its systematic name.

According to Valence Bond theory, in the square planar Ni(CN)₄^2- complex ion, the orbital hybridization pattern is

All atoms of the first transition series of elements have the ground state electronic configuration [Ar]4s²3d^x, where x is an integer from 1 to 10.

How many unpaired electrons are there in the Fe³⁺ ion?

The d_xy and the d_x²_-_y²orbitals both lie in the xy plane, yet for a metal ion in an octahedral complex the energy of the d_xy orbital is lower than that of the d_x²_-_y²orbital. Explain this using the arguments of crystal field theory.