Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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1.
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Which molecule in the following reaction undergoes oxidation? 2
C2H2(g) + 5 O2(g) --> 4 CO2(g) + 2
H2O(g)
A | CO2 | B | C2H2 | C | C2H2 and
O2 | D | H2O |
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2.
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What is the oxidation number of phosphorus in P2O5?
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3.
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Which compound is the oxidizing agent in the reaction: I-(aq) +
ClO-(aq) --> IO-(aq) + Cl-(aq)
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4.
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Which of the following are redox reactions? | 1. | Zn + CuSO4 -->
ZnSO4 + Cu | | 2. | Pb(ClO4)2 + 2 KI --> PbI2 + 2
NaClO4 | | 3. | CaCO3 --> CO2 + CaO | | |
A | 1 only | B | 2 only | C | 2 and 3 | D | 1 and
2 |
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5.
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What is the spectator ion in the equation Cu2+(aq) +
Zn2+(aq) + 2S2–(aq) --> CuS(s) +
ZnS(s)?
A | Cu2+(aq) | C | Zn2+(aq) | B | S2–(aq) | D | None of the
above |
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6.
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What is the net ionic equation for the reaction of aqueous lead(II) nitrate with
aqueous sodium bromide?
A | Pb(NO3)2(aq) + 2 NaBr(aq) --> PbBr2(s) + 2
NaNO3(aq) | B | Pb(NO3)2(aq) + 2 NaBr(aq)
--> PbBr2(aq) + 2 NaNO3(s) | C | Na+(aq) +
NO3-(aq) --> NaNO3(s) | D | Pb2+(aq) +
2 Br-(aq) --> PbBr2(s) |
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7.
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Which ions do not appear in the net ionic equation for the precipitation
reaction involving solutions of Zn(NO3)2 and
Na3PO4?
A | Na+(aq) and Zn2+(aq) | C | Zn2+(aq) and NO (aq) | B | Na+(aq) and NO (aq) | D | Zn2+(aq) and PO (aq) |
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8.
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Which of the following compounds will be soluble in water: LiOH,
Mg(OH)2, Cu(OH)2, and Fe(OH)3?
A | LiOH only | C | Mg(OH)2 and Cu(OH)2 | B | LiOH and
Mg(OH)2 | D | LiOH,
Mg(OH)2, and Fe(OH)3 |
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9.
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Which of the following pairs of solutions produces a precipitate when
combined?
A | KOH and NH4Cl | C | Na2SO4 and
KCl | B | NH4Cl and AgNO3 | D | Fe(NO)3 and
KCl |
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10.
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What are the spectator ions in the reaction between aqueous perchloric acid and
aqueous potassium hydroxide?
A | H+ and OH- | C | K+ and
ClO4- | B | H+ and
ClO4- | D | H+, ClO4-, K+, and
OH- |
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