Question 1

Proteins that bind tightly to Fe(III) can be used as antibacterial agents.

Accepted Answer

A) True 
 B)False

Question 2

According to the Jahn-Teller theorem, the distorted system is less stable than the undistorted one.

Accepted Answer

A) True 
 B)False

Question 3

If ∆o is less than the spin pairing energy, a low-spin configuration results.

Accepted Answer

A) True 
 B)False

Question 4

What are the commercial applications of group 4 transition metals?

Accepted Answer

Titanium is often used as a replacement

Question 5

_____ is a group 4 element that is often used as a replacement for aluminium in applications that require high temperatures and corrosion resistance.

Accepted Answer

The answer of _____ is a group 4 element that...

Question 6

_____ is a group 5 element that has a tendency to form ions in the lower oxidation states.

Accepted Answer

A)  Hf 
B)  Nb 
C)  Ta 
D)  V 
E)  Ti 
A)  Hf 
B)  Nb 
C)  Ta 
D)  V 
E)  Ti

Question 7

Which of the following metals has a significant noble character?

Accepted Answer

A)  Titanium 
B)  Niobium 
C)  Tantalum 
D)  Platinum 
E)  Hafnium 
A)  Titanium 
B)  Niobium 
C)  Tantalum 
D)  Platinum 
E)  Hafnium

Question 8

Panning is a technique in which the compound of interest is made to float on top of a solution.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following metals has the smallest atomic radius?

Accepted Answer

A)  W 
B)  Co 
C)  Ta 
D)  Ag 
E)  V 
A)  W 
B)  Co 
C)  Ta 
D)  Ag 
E)  V

Question 10

Which of the following is a high-spin complex?

Accepted Answer

A)  [Fe(CN)6]3− 
B)  [CoF6]3− 
C)  [Co(NH3)6]3+ 
D)  [Ni(CN)4]2− 
E)  [Rh(CO)2Cl2]− 
A)  [Fe(CN)6]3− 
B)  [CoF6]3− 
C)  [Co(NH3)6]3+ 
D)  [Ni(CN)4]2− 
E)  [Rh(CO)2Cl2]−

Question 11

A(n) _____ is a metalloprotein that catalyzes a chemical reaction.

Accepted Answer

A)  cytochrome 
B)  iron-sulfur protein 
C)  blue copper protein 
D)  hemocyanin 
E)  metalloenzyme 
A)  cytochrome 
B)  iron-sulfur protein 
C)  blue copper protein 
D)  hemocyanin 
E)  metalloenzyme

Question 12

Which of the following transition metals is most likely to form compounds in the +6 oxidation state?

Accepted Answer

A)  Ti 
B)  Cr 
C)  Tc 
D)  Os 
E)  Co 
A)  Ti 
B)  Cr 
C)  Tc 
D)  Os 
E)  Co

Question 13

In transition metals, the ns electrons are always lost before the (n-1)d electrons.

Accepted Answer

A) True 
 B)False

Question 14

_____ is a protein in multicellular organisms that forms a complex with Fe(III) allowing it to be transported to other cells.

Accepted Answer

A)  Hemoglobin 
B)  Cytochrome 
C)  Transferrin 
D)  Ferritin 
E)  Prostaglandin 
A)  Hemoglobin 
B)  Cytochrome 
C)  Transferrin 
D)  Ferritin 
E)  Prostaglandin

Question 15

_____ are ionic species formed between a central metal ion and one or more surrounding ligands because of a Lewis acid-base interaction.

Accepted Answer

The answer of _____ are ionic species formed between a...

Question 16

The transition metals exhibit significant horizontal similarities in chemistry.

Accepted Answer

A) True 
 B)False

Question 17

Why do the coinage metals exhibit significant noble character?

Accepted Answer

The ionization energies and the electron

Question 18

Which of the following elements is highly electropositive and a powerful reductant?

Accepted Answer

A)  Cadmium 
B)  Chromium 
C)  Tungsten 
D)  Yttrium 
E)  Osmium 
A)  Cadmium 
B)  Chromium 
C)  Tungsten 
D)  Yttrium 
E)  Osmium

Question 19

Pyrometallurgy employs chemical or electrochemical reduction of an aqueous solution of the metal.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following is a Hard base?

Accepted Answer

A)  H- 
B)  OH- 
C)  CN- 
D)  SCN- 
E)  I- 
A)  H- 
B)  OH- 
C)  CN- 
D)  SCN- 
E)  I-

Exam 23: The D-Block Elements

Proteins that bind tightly to Fe(III) can be used as antibacterial agents.

According to the Jahn-Teller theorem, the distorted system is less stable than the undistorted one.

If ∆o is less than the spin pairing energy, a low-spin configuration results.

What are the commercial applications of group 4 transition metals?

_____ is a group 4 element that is often used as a replacement for aluminium in applications that require high temperatures and corrosion resistance.

_____ is a group 5 element that has a tendency to form ions in the lower oxidation states.

Which of the following metals has a significant noble character?

Panning is a technique in which the compound of interest is made to float on top of a solution.

Which of the following metals has the smallest atomic radius?

Which of the following is a high-spin complex?

A(n) _____ is a metalloprotein that catalyzes a chemical reaction.

Which of the following transition metals is most likely to form compounds in the +6 oxidation state?

In transition metals, the ns electrons are always lost before the (n-1)d electrons.

_____ is a protein in multicellular organisms that forms a complex with Fe(III) allowing it to be transported to other cells.

_____ are ionic species formed between a central metal ion and one or more surrounding ligands because of a Lewis acid-base interaction.

The transition metals exhibit significant horizontal similarities in chemistry.

Why do the coinage metals exhibit significant noble character?

Which of the following elements is highly electropositive and a powerful reductant?

Pyrometallurgy employs chemical or electrochemical reduction of an aqueous solution of the metal.

Which of the following is a Hard base?

Introduction to Chemistry

Molecules, Ions, and Chemical Formulas

Chemical Reactions

Reactions in Aqueous Solution

Energy Changes in Chemical Reactions

The Structure of Atoms

The Periodic Table and Periodic Trends

Ionic Versus Covalent Bonding

Molecular Geometry and Covalent Bonding Models

Gases

Liquids

Solids

Solutions

Chemical Kinetics

Chemical Equilibrium

Aqueous Acidbase Equilibriums

Solubility and Complexation Equilibriums

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Periodic Trends and the S-Block Elements

The P-Block Elements

Organic Compounds

Filters

If ∆_o is less than the spin pairing energy, a low-spin configuration results.