Introductory Chemistry Study Set 7

Chemistry

Quiz 14 :

Oxidation and Reduction

Quiz 14 :

Oxidation and Reduction

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Given: Li + Hg2I2 → 2LiI + 2Hg The equation is a balanced reaction. Refer to the reaction below for True/False Questions 13-14. Given: Fe + MnO4 Fe3+ + Mn
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True False
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False

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When an oxidation number of an atom is increased in the course of a redox reaction, that atom is being reduced.
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True False
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False

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Given: Mo2+ + Br2 → Mo3+ + 2Br The equation is a balanced reaction.
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True False
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False

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The phosphorous atom in H3PO4 is assigned an oxidation number of +5.
True False
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The fluorine atom in HF is assigned an oxidation number of +1.
True False
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If the reaction is taking place in an acidic solution, 6 moles of H2O are required on the product side to balance the equation.
True False
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The sodium atom in NaOH is assigned an oxidation number of +1.
True False
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If the reaction is taking place in a basic solution the balanced equation of the reaction is 7Fe + 3MnO4 7Fe3+ + 3Mn + 24OH+ 12H2O.
True False
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When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being oxidized.
True False
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The calcium atom in Ca3(PO4)2 is assigned an oxidation number of +3.
True False
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Given: O2 + 2H2O + I2 → 4OH + 2I The equation is a balanced reaction.
True False
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The oxygen atom in O2 is assigned an oxidation number of -1.
True False
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Given: Ru2S3 + O2 → Ru2O3 + S The coefficient of Ru2S3 is 2 in the balanced chemical equation.
True False
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The value of E1/2 for the half reaction O2 + 4H+ + 4e → 2H2O is 1.23 V.
True False
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Given: Na + I2 → NaI The coefficient of Na is 2 in the balanced chemical equation.
True False
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Atoms in their elemental state are assigned an oxidation number of 0.
True False
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Given: Be + 2H+ → Be2+ + H2 The equation is a balanced reaction.
True False
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The voltage of a voltaic cell based on the reaction O2 + 4H+ + 4Cl→ 2H2O + 2Cl2 is 0.15 V.
True False
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The value of E1/2 for the half reaction Mn2+ + 4H2O → MnO4 + 8H+ + 5e is 1.51 V.
True False
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The reaction taking place in the voltaic cell Ag+ + Fe2+ → Ag + Fe3+ is a nonspontaneous reaction.
True False
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Showing 1 - 20 of 104