Question 1

Which mineral contains calcium as a major element?

Accepted Answer

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

Question 2

Why is cryolite,Na3AlF6,mixed with alumina prior to electrolysis in the production of Al?

Accepted Answer

Alumina ac...

Question 3

Where on the periodic table are the most reactive metals located?

Accepted Answer

A)  Group IA (alkali metals) 
B)  Group IA (alkaline earth metals) 
C)  Group IIA (alkali metals) 
D)  Group IIA (alkaline earth metals) 
E)  Group VIIA (halogens)

Question 4

Which mineral is not a carbonate?

Accepted Answer

A)  Witherite
B)  Sylvite
C)  Smithsonite
D)  Cerussite
E)  Calcite

Question 5

What is the chemical formula for cinnabar?

Accepted Answer

A)  HgS
B)  SnBr
C)  SnO2
D)  TiO2
E)  SnBr4

Question 6

Which mineral is not a silicate?

Accepted Answer

A)  Zircon
B)  Beryl
C)  Smithsonite
D)  Albite
E)  Talc

Question 7

Which one of these normally would not be obtained by chemical reduction?

Accepted Answer

A)  Fe
B)  Ti
C)  Zn
D)  Mg
E)  Ag

Question 8

Aluminum chloride exist as a dimer.

Accepted Answer

A) True 
 B)False

Question 9

Which is a covalent oxide?

Accepted Answer

A)  CaO
B)  Na2O
C)  Li2O
D)  Cs2O
E)  BeO

Question 10

_______________ _________ is the name given to Group 1A.

Accepted Answer

The answer of _______________ _________ is the name given to...

Question 11

The following electrolytic cell is a representation of the process used to purify copper metal.How does it work?  .

Accepted Answer

A)  Impure copper is oxidized at the anode,and pure copper is reduced at the cathode.Impurities dissolve into solution.
B)  Impure copper is oxidized at the cathode,and pure copper is reduced at the anode.Impurities dissolve into solution.
C)  Impure copper is oxidized at the anode,and pure copper dissolves into solution.Impurities remain on the cathode.
D)  Impure copper is oxidized at the cathode,and pure copper dissolves into solution.Impurities remain on the anode.
E)  Impure copper precipitates from solution onto the cathode,and pure copper remains on the anode.

Question 12

Basic properties are characteristic of all alkaline earth metal oxides except one.Which is the exception?

Accepted Answer

A)  BeO
B)  MgO
C)  SO2
D)  B2O3
E)  CaO

Question 13

Which is an example of a basic oxide?

Accepted Answer

A)  SO3(g) 
B)  BaO(s) 
C)  Al2O3(s) 
D)  Fe2O3(s) 
E)  SiO2(s)

Question 14

Explain the method of zone refining.

Accepted Answer

A metal rod containing a few impurities ...

Question 15

A fractional distillation method called the Mond process is used to purify nickel.

Accepted Answer

A) True 
 B)False

Question 16

Volatile impurities are removed from ores by means of

Accepted Answer

A)  roasting.
B)  amalgamation.
C)  electrolysis.
D)  flotation.
E)  zone refining.

Question 17

Which of these ions is most likely to substitute for Ca2+ in the human body?

Accepted Answer

A)  Cl-
B)  Sr2+
C)  K+
D)  S2-
E)  Pb2+

Question 18

What is the molecular shape of AlF3?

Accepted Answer

A)  Tetrahedral
B)  Linear
C)  Trigonal pyramidal
D)  Square planar
E)  Trigonal planar

Question 19

Which diagram best corresponds to the energy level diagram of a metal?

Accepted Answer

A)   
B)   
C)   
D)

Question 20

A mineral deposit concentrated enough to allow economical recovery of a desired metal is known as _________.

Accepted Answer

The answer of A mineral deposit concentrated enough to allow...

Exam 23: Metallurgy and the Chemistry of Metals

_______________ _________ is the name given to Group 1A.

Correct AnswerverifiedShow Answer

A fractional distillation method called the Mond process is used to purify nickel.

Correct AnswerverifiedShow Answer

Where on the periodic table are the most reactive metals located?

Correct AnswerverifiedShow Answer

Volatile impurities are removed from ores by means of

Correct AnswerverifiedShow Answer

Basic properties are characteristic of all alkaline earth metal oxides except one.Which is the exception?

Correct AnswerverifiedShow Answer

What is the molecular shape of AlF3?

Correct AnswerverifiedShow Answer

Which diagram best corresponds to the energy level diagram of a metal?

Correct AnswerverifiedShow Answer

Aluminum chloride exist as a dimer.

Correct AnswerverifiedShow Answer

Why is cryolite,Na3AlF6,mixed with alumina prior to electrolysis in the production of Al?

Correct AnswerverifiedAlumina ac...View AnswerShow Answer

Which one of these normally would not be obtained by chemical reduction?

Correct AnswerverifiedShow Answer

The following electrolytic cell is a representation of the process used to purify copper metal.How does it work? .

Correct AnswerverifiedShow Answer

Which mineral is not a silicate?

Correct AnswerverifiedShow Answer

Which mineral is not a carbonate?

Correct AnswerverifiedShow Answer

Which is an example of a basic oxide?

Correct AnswerverifiedShow Answer

Which of these ions is most likely to substitute for Ca2+ in the human body?

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A mineral deposit concentrated enough to allow economical recovery of a desired metal is known as _________.

Correct AnswerverifiedShow Answer

What is the chemical formula for cinnabar?

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Which is a covalent oxide?

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Explain the method of zone refining.

Correct AnswerverifiedA metal rod containing a few impurities ...View AnswerShow Answer

Which mineral contains calcium as a major element?

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_______ _ is the name given to Group 1A.

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What is the molecular shape of AlF₃?

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Why is cryolite,Na₃AlF₆,mixed with alumina prior to electrolysis in the production of Al?

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Alumina ac...
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Which of these ions is most likely to substitute for Ca²⁺ in the human body?

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A metal rod containing a few impurities ...
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