Question 1

Which one of the following is not true about transition metals?

Accepted Answer

A)  They frequently have more than one common oxidation state. 
B)  Their compounds frequently exhibit magnetic properties. 
C)  They are found in the d- block of the periodic table. 
D)  Their compounds are frequently colored. 
E)  They typically have low melting points. 
A)  They frequently have more than one common oxidation state. 
B)  Their compounds frequently exhibit magnetic properties. 
C)  They are found in the d- block of the periodic table. 
D)  Their compounds are frequently colored. 
E)  They typically have low melting points.

Question 2

The transition metals in group have the highest melting points.

Accepted Answer

A)  6B 
B)  4B 
C)  8B 
D)  2B 
E)  3B 
A)  6B 
B)  4B 
C)  8B 
D)  2B 
E)  3B

Question 3

In a blast furnace, coke is used to provide the needed heat and to provide carbon monoxide to act as a reducing agent.

Accepted Answer

A) True 
 B)False

Question 4

For a substitutional alloy to form, the two metals combined must have similar

Accepted Answer

A)  ionization potential and electron affinity. 
B)  atomic radii and chemical bonding properties. 
C)  reduction potential and size. 
D)  number of valance electrons and electronegativity. 
E)  band gap and reactivity. 
A)  ionization potential and electron affinity. 
B)  atomic radii and chemical bonding properties. 
C)  reduction potential and size. 
D)  number of valance electrons and electronegativity. 
E)  band gap and reactivity.

Question 5

Which statement about steel is false?

Accepted Answer

A)  It can have different percentage of carbon. 
B)  It is a polymer. 
C)  It is an alloy of iron. 
D)  In can be made so it resists rust. 
E)  none of the above 
A)  It can have different percentage of carbon. 
B)  It is a polymer. 
C)  It is an alloy of iron. 
D)  In can be made so it resists rust. 
E)  none of the above

Question 6

When copper(II) hydroxide is heated, _ and _ are formed.

Accepted Answer

A)  CuH2 (s) + O2 (g) 
B)  CuOH (s) + H2O (g) 
C)  Cu (s), OH- (g) 
D)  Cu (s), H2O (l) 
E)  CuO (s), H2O (l) 
A)  CuH2 (s) + O2 (g) 
B)  CuOH (s) + H2O (g) 
C)  Cu (s), OH- (g) 
D)  Cu (s), H2O (l) 
E)  CuO (s), H2O (l)

Question 7

Which property of metals cannot be explained with the electron- sea model?

Accepted Answer

A)  shine 
B)  trends in melting points 
C)  high thermal connectivity 
D)  high electric connectivity 
E)  malleability and ductility 
A)  shine 
B)  trends in melting points 
C)  high thermal connectivity 
D)  high electric connectivity 
E)  malleability and ductility

Question 8

In the Bayer process, the purpose of lowering the pH after the digested ore has been filtered is
)

Accepted Answer

A)  the dissolve the remaining ore 
B)  to precipitate the iron oxide 
C)  to precipitate the aluminum hydroxide 
D)  to precipitate the iron hydroxide 
E)  to dissolve the remaining impurities 
A)  the dissolve the remaining ore 
B)  to precipitate the iron oxide 
C)  to precipitate the aluminum hydroxide 
D)  to precipitate the iron hydroxide 
E)  to dissolve the remaining impurities

Question 9

What is the name and the formula of the most useful ore of aluminum?

Accepted Answer

The answer of What is the name and the formula...

Question 10

Which one of the following copper compounds is black in color?

Accepted Answer

A)  Cu(H2O)42+ 
B)  CuO 
C)  CuI 
D)  CuSO4 
E)  CuCl2 
A)  Cu(H2O)42+ 
B)  CuO 
C)  CuI 
D)  CuSO4 
E)  CuCl2

Question 11

18 karat gold contains % gold.

Accepted Answer

A)  25 
B)  89 
C)  75 
D)  100 
E)  18 
A)  25 
B)  89 
C)  75 
D)  100 
E)  18

Question 12

The purpose of burning coke in a blast furnace is

Accepted Answer

A)  to produce hydrogen gas. 
B)  to produce carbon monoxide gas. 
C)  to produce reducing gases. 
D)  to produce heat. 
E)  all of the above 
A)  to produce hydrogen gas. 
B)  to produce carbon monoxide gas. 
C)  to produce reducing gases. 
D)  to produce heat. 
E)  all of the above

Which one of the following is not true about transition metals?

The transition metals in group have the highest melting points.

In a blast furnace, coke is used to provide the needed heat and to provide carbon monoxide to act as a reducing agent.

For a substitutional alloy to form, the two metals combined must have similar

Which statement about steel is false?

When copper(II) hydroxide is heated, _ and _ are formed.

Which property of metals cannot be explained with the electron- sea model?

In the Bayer process, the purpose of lowering the pH after the digested ore has been filtered is )

What is the name and the formula of the most useful ore of aluminum?

Which one of the following copper compounds is black in color?

18 karat gold contains % gold.

The purpose of burning coke in a blast furnace is

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters

Exam 23: Metals and Metallurgy

Which one of the following is not true about transition metals?

The transition metals in group have the highest melting points.

In a blast furnace, coke is used to provide the needed heat and to provide carbon monoxide to act as a reducing agent.

For a substitutional alloy to form, the two metals combined must have similar

Which statement about steel is false?

When copper(II) hydroxide is heated, _ and _ are formed.

Which property of metals cannot be explained with the electron- sea model?

In the Bayer process, the purpose of lowering the pH after the digested ore has been filtered is )

What is the name and the formula of the most useful ore of aluminum?

Which one of the following copper compounds is black in color?

18 karat gold contains % gold.

The purpose of burning coke in a blast furnace is

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

Filters