Alkene Chemical Properties Quiz
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Questions and Answers

What is the name of the reaction where hydrogen adds to alkenes and converts them into corresponding alkanes?

  • Unsaturated conversion
  • Hydrogenation (correct)
  • Addition reaction
  • Halogenation

    • What is the product formed when bromine is added to an alkene?

  • Alkane
  • Alkene bromide
  • Brominated alkene
  • Haloalkane or alkyl halide (correct)

    • What is a common catalyst used in the hydrogenation of alkenes?

  • Chlorine
  • Sulfuric acid
  • Platinum (correct)
  • Bromine

    • What is the characteristic color change observed when bromine is added to an alkene?

    <p>Red-brown to colorless</p> Signup and view all the answers

    What is the product formed when 2-butene reacts with Br2?

    <p>2,3-dibromobutane</p> Signup and view all the answers

    What is the product formed when 2-butene reacts with HCl?

    <p>2-chlorobutane</p> Signup and view all the answers

    What is the product formed when 2-butene reacts with H2O in the presence of an acid?

    <p>2-butanol</p> Signup and view all the answers

    What is the name of the product formed when 2-methyl-1-butene reacts with H2, Pt/25°C?

    <p>2-methylbutane</p> Signup and view all the answers

    What is the product formed when 2-methyl-1-butene reacts with Cl2?

    <p>1,2-dichloro-2-methylbutane</p> Signup and view all the answers

    What is the product formed when 2-methyl-1-butene reacts with HCl?

    <p>2-chloro-2-methylbutane</p> Signup and view all the answers

    What happens in an addition reaction of HX to an alkene if hydrogen peroxide is present?

    <p>Anti-Markovnikov addition</p> Signup and view all the answers

    What is the product formed when ethene reacts with KMnO4 (aq) + H2O?

    <p>1,2-ethanediol</p> Signup and view all the answers

    What is the positive test for unsaturated hydrocarbon?

    <p>Disappearance of KMnO4's purple color and appearance of a brown suspension of MnO2</p> Signup and view all the answers

    What is the product formed when trans-2-hexene reacts with HBr?

    <p>trans-2-bromohexane</p> Signup and view all the answers

    What is the functional group present in alkenes?

    <p>Carbon-carbon double bond</p> Signup and view all the answers

    What is the product formed when 2-butene reacts with H2SO4?

    <p>2-butane hydrogen sulphate</p> Signup and view all the answers

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