Combustion Chemistry Quiz
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Questions and Answers

What is the primary characteristic that defines combustion?

  • It occurs only in solid substances.
  • It is an exothermic reaction that does not involve any gas.
  • It requires the presence of oxygen. (correct)
  • It produces only heat without light.

    • In the complete combustion of methane, which products are formed?

  • C and H2O
  • CO and H2O
  • CO2 and H2O (correct)
  • O2 and C

    • What results from insufficient oxygen during combustion?

  • The fuel is converted into biomass.
  • Carbon monoxide and unburnt carbon may be formed. (correct)
  • Only carbon dioxide is produced.
  • The reaction is halted completely.

    • When considering the combustion equation 2C2H6 + xO2 → 4CO2 + 6H2O, what is the balanced value of x?

    <p>8</p> Signup and view all the answers

    Which of the following alkanes is incorrectly associated with its combustion reaction?

    <p>C2H6 producing only CO2</p> Signup and view all the answers

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