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Examples of
Multiple Choice Questions

These questions have been taken from exams given in previous years. They roughly cover the material in the order presented in the textbook.
Note: The subscripts and superscripts may not appear as such. It depends upon your web browser.

Some metals are found in the uncombined free state while other metals are found in the combined state. What is a deciding factor?
(a) Metals with negative reduction potentials can occur in the free state while metals with positive reduction potentials occur in the combined state.
(b) The active metals can occur in the free state while the less active metals occur in the combined state.
(c) Metals with positive reduction potentials can occur in the free state while metals with negative reduction potentials can occur in the combined state.
(d) There is no way we can predict which metals will be free or combined.
(e) none of the above

Soluble metal compounds tend to be found in the _____, whereas insoluble metal compounds tend to be found in the _____ .
(a) oceans; earth's crust
(b) earth's crust; oceans
(c) salt beds; oceans
(d) oceans; salt beds
(e) rivers; oceans

In the process known as 'roasting,' a(n) _____ is chemically converted to a(n) _____.
(a) sulfide; oxide
(b) carbonate; oxide
(c) hydroxide; oxide
(d) oxide; sulfate
(e) phosphate; phosphide

Which metal can be found as the free element?
(a) Na
(b) Mn
(c) Fe
(d) Cr
(e) Pt

The Hall-Heroult process is used in the production of:
(a) Mg
(b) Fe
(c) Al
(d) Au
(e) Cu

How much magnesium can be obtained from one pound of seawater if the concentration
of Mg2+ is 0.13 weight percent? Assume 100% recovery.
(a) 1.7 grams
(b) 1.3 grams
(c) 0.35 grams
(d) 0.59 grams
(e) 2.5 grams

For every 100 pounds of iron ore there are 27.8 pounds of magnetite, Fe3O4. What is the weight percent iron in this ore?
(a) 72.3%
(b) 20.1%
(c) 27.8%
(d) 16.7%
(e) 23.1%

A reaction sequence for the reduction of one of the iron ores is as follows:

2 C(coke) + O2 2 CO
Fe2O3 + 3 CO 2 Fe + 3 CO2

Calculate the amount of coke necessary to produce 800 g of Fe.
(a) 114 g
(b) 1030 g
(c) 258 g
(d) 172 g
(e) 544 g

What is the charge on the copper ion in the mineral azurite, Cu3(CO3)2(OH)2?
(a) 2+
(b) 1+
(c) 0
(d) 1-
(e) 2-

How many coulombs of electricity are required to produce one metric ton (1000 kg) of magnesium? There are 96,500 coulombs in one faraday.
MgCl2 Mg(l) + Cl2

(a) 4.0 x 109 coulombs
(b) 2.0 x 109 coulombs
(c) 7.9 x 109 coulombs
(d) 1.2 x 1012 coulombs
(e) 5.3 x 108 coulombs


1. (c) 2. (a) 3. (a) 4. (e) 5. (c) 6. (d) 7. (b) 8. (c) 9. (a) 10. (c)

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 Fundamentals of Chemistry | Chemical Formulas & Composition Stoichiometry | Chemical Equations & Rxn Stoichiometry | Types of Chemical Reactions |
| Atomic Structure | Chemical Periodicity | Chemical Bonding | Molecular Structure/Covalent Bonding Theories| Molecular Orbital Theory |
| Acids/Bases/Salts - Theory & Rxns | Acids/Bases/Salts - Calculations (including balancing redox rxns) | Gases | Solids & Liquids | Solutions |
| Thermodynamics | Kinetics | Equilibrium | Aqueous Equilibrium - Acids/Bases/Salts | Aqueous Equilibrium - Buffers & Titrations |
| Aqueous Equilibrium - Slightly Soluble Salts | Electrochemistry | Metallurgy | Metal Properties & Rxns | Nonmetals & Metalloids |
| Coordination Compounds | Nuclear Chemistry | Organic Chem - Formulas/Names/Properties | Organic Chem - Shapes/Rxns/Biopolymers |

To report any corrections, please e-mail Dr. Wendy Keeney-Kennicutt.