Question 1

The process used to produce metals with a purity of more than 99.99% is called

Accepted Answer

A) zone refining. 
B) electrorefining. 
C) distillation. 
D) sublimation. 
E) alloying. 
A) zone refining. 
B) electrorefining. 
C) distillation. 
D) sublimation. 
E) alloying.

Question 2

The most common source for the commercial production of sodium is called

Accepted Answer

A) sodalite. 
B) limestone. 
C) halite. 
D) galena. 
E) pyrite. 
A) sodalite. 
B) limestone. 
C) halite. 
D) galena. 
E) pyrite.

Question 3

Which mineral is a silicate?

Accepted Answer

A) Cinnabar 
B) Corundum 
C) Smithsonite 
D) Hydroxyapatite 
E) Talc 
A) Cinnabar 
B) Corundum 
C) Smithsonite 
D) Hydroxyapatite 
E) Talc

Question 4

The first step in the purification of a metal M is represented by the following figure.To which process does the figure correspond,and which metal is usually purified by this process?

Accepted Answer

A) The Mond process,for the purification of Zn 
B) The Mond process,for the purification of Ni 
C) The Hall process,for the purification of Al 
D) The Hall process,for the purification of Cr 
E) The zone refining process,for the purification of Fe 
A) The Mond process,for the purification of Zn 
B) The Mond process,for the purification of Ni 
C) The Hall process,for the purification of Al 
D) The Hall process,for the purification of Cr 
E) The zone refining process,for the purification of Fe

Question 5

Which undergoes electrolysis to form calcium metal?

Accepted Answer

A) Ca(OH)2 
B) Ca(NO3)2 
C) CaI2 
D) CaF2 
E) CaCl2 
A) Ca(OH)2 
B) Ca(NO3)2 
C) CaI2 
D) CaF2 
E) CaCl2

Question 6

For the production of metallic chromium at high temperatures,which is NOT an appropriate choice for the metal M? Cr2O3(s)+ 3M(l)→ 2Cr(l)+ 3MO(s)

Accepted Answer

A) Mg 
B) Sn 
C) Ca 
D) Cu 
E) Sr 
A) Mg 
B) Sn 
C) Ca 
D) Cu 
E) Sr

Question 7

The alkali metals are isolated from nonaqueous systems.Why is this necessary?

Accepted Answer

A) The electrolysis of aqueous solutions of the alkali metals requires more energy than electrolysis of the molten salts. 
B) The dissolved alkali earth halides are too reactive to be electrolyzed. 
C) The aqueous metal ions are more difficult to reduce than water. 
D) The reduction potentials of the alkali metals are more positive than the reduction potential of water. 
E) The aqueous metal ions react violently with water. 
A) The electrolysis of aqueous solutions of the alkali metals requires more energy than electrolysis of the molten salts. 
B) The dissolved alkali earth halides are too reactive to be electrolyzed. 
C) The aqueous metal ions are more difficult to reduce than water. 
D) The reduction potentials of the alkali metals are more positive than the reduction potential of water. 
E) The aqueous metal ions react violently with water.

Question 8

___________ is the metallurgy procedure carried out at high temperature.

Accepted Answer

The answer of ___________ is the metallurgy procedure carried out...

Question 9

The process of converting metal sulfides to metal oxides is called

Accepted Answer

A) roasting. 
B) smelting. 
C) flotation. 
D) leaching. 
E) sulfoxidation. 
A) roasting. 
B) smelting. 
C) flotation. 
D) leaching. 
E) sulfoxidation.

Question 10

Electrometallurgy uses _________________ to separate a metal from its ore.

Accepted Answer

A) solid phase chemical properties 
B) electrical processes 
C) thermal processes 
D) aqueous chemical processes 
E) molten salt processes 
A) solid phase chemical properties 
B) electrical processes 
C) thermal processes 
D) aqueous chemical processes 
E) molten salt processes

Question 11

What elements are alloyed to make stainless steel?

Accepted Answer

A) Fe and C 
B) Fe and Mn 
C) Fe and Ni 
D) Fe and Cr 
E) Fe,Cr,and Ni 
A) Fe and C 
B) Fe and Mn 
C) Fe and Ni 
D) Fe and Cr 
E) Fe,Cr,and Ni

Question 12

_____ consists of potassium nitrate,wood charcoal,and sulfur.

Accepted Answer

A) Salt peter 
B) Chile salt peter 
C) Carborundum 
D) Gunpowder 
E) Anglesite 
A) Salt peter 
B) Chile salt peter 
C) Carborundum 
D) Gunpowder 
E) Anglesite

Question 13

What type of metal is generally separated using a strong electromagnet?

Accepted Answer

A) ferromagnetic 
B) oxide 
C) alkaline 
D) uncombined 
A) ferromagnetic 
B) oxide 
C) alkaline 
D) uncombined

Question 14

What metals occur in the free and uncombined state and are obtained by roasting their sulfides?

Accepted Answer

Mercury,si

Question 15

The mineral cryolite,Na3AlF6,is used in the Hall process for aluminum production as

Accepted Answer

A) the source of aluminum (the ore). 
B) a chemical reducing agent. 
C) a material that forms a slag and thus removes impurities. 
D) a solvent for alumina,Al2O3. 
A) the source of aluminum (the ore). 
B) a chemical reducing agent. 
C) a material that forms a slag and thus removes impurities. 
D) a solvent for alumina,Al2O3.

The process used to produce metals with a purity of more than 99.99% is called

The most common source for the commercial production of sodium is called

Which mineral is a silicate?

The first step in the purification of a metal M is represented by the following figure.To which process does the figure correspond,and which metal is usually purified by this process?

Which undergoes electrolysis to form calcium metal?

For the production of metallic chromium at high temperatures,which is NOT an appropriate choice for the metal M? Cr₂O₃(s)+ 3M(l)→ 2Cr(l)+ 3MO(s)

The alkali metals are isolated from nonaqueous systems.Why is this necessary?

___________ is the metallurgy procedure carried out at high temperature.

The process of converting metal sulfides to metal oxides is called

Electrometallurgy uses _________________ to separate a metal from its ore.

What elements are alloyed to make stainless steel?

_____ consists of potassium nitrate,wood charcoal,and sulfur.

What type of metal is generally separated using a strong electromagnet?

What metals occur in the free and uncombined state and are obtained by roasting their sulfides?

The mineral cryolite,Na₃AlF₆,is used in the Hall process for aluminum production as

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

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

Exam 23: Metallurgy and the Chemistry of Metals

The process used to produce metals with a purity of more than 99.99% is called

The most common source for the commercial production of sodium is called

Which mineral is a silicate?

The first step in the purification of a metal M is represented by the following figure.To which process does the figure correspond,and which metal is usually purified by this process?

Which undergoes electrolysis to form calcium metal?

For the production of metallic chromium at high temperatures,which is NOT an appropriate choice for the metal M? Cr2O3(s)+ 3M(l)→ 2Cr(l)+ 3MO(s)

The alkali metals are isolated from nonaqueous systems.Why is this necessary?

___________ is the metallurgy procedure carried out at high temperature.

The process of converting metal sulfides to metal oxides is called

Electrometallurgy uses _________________ to separate a metal from its ore.

What elements are alloyed to make stainless steel?

_____ consists of potassium nitrate,wood charcoal,and sulfur.

What type of metal is generally separated using a strong electromagnet?

What metals occur in the free and uncombined state and are obtained by roasting their sulfides?

The mineral cryolite,Na3AlF6,is used in the Hall process for aluminum production as

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

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

For the production of metallic chromium at high temperatures,which is NOT an appropriate choice for the metal M? Cr₂O₃(s)+ 3M(l)→ 2Cr(l)+ 3MO(s)

The mineral cryolite,Na₃AlF₆,is used in the Hall process for aluminum production as