Redox Reactions: Unit 8 Chemistry Quiz
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Questions and Answers

In the redox reaction between fluorine and ice, what is the oxidation state change of hydrogen?

  • From 0 to +1
  • From +1 to -1 (correct)
  • From -1 to +1
  • From +1 to +2
  • Which category of redox reaction does the reaction between sulfur dioxide and hydrogen peroxide belong to?

  • Displacement reaction
  • Disproportionation reaction (correct)
  • Combination reaction
  • Decomposition reaction
  • What is the oxidation number of sulfur in H2SO5?

  • +6
  • +7 (correct)
  • +5
  • +8
  • Which compound has chromium with an oxidation number of +6?

    <p>Cr2O7</p> Signup and view all the answers

    Which compound's structure suggests an oxidation state for nitrogen of +5?

    <p>NO3</p> Signup and view all the answers

    Which compound represents an incorrect formula?

    <p>(Ni)2(SO4)3</p> Signup and view all the answers

    In which substance can carbon exhibit an oxidation state of -4?

    <p>$CH_4$</p> Signup and view all the answers

    Why can ozone and nitric acid only act as oxidants?

    <p>$O_3$ and $HNO_3$ do not have any unpaired electrons.</p> Signup and view all the answers

    Which redox reaction involves a displacement reaction?

    <p>$4BCl_3(g) + 3LiAlH_4(s) \rightarrow 2B_2H_6(g) + 3LiCl(s) + 3AlCl_3(s)$</p> Signup and view all the answers

    What is the change in the oxidation state of oxygen in the redox reaction: $4NH_3(g) + 5O_2(g) \rightarrow 4NO(g) + 6H_2O(g)$?

    <p>From 0 to -2</p> Signup and view all the answers

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