Organic Chemistry Reactions and Reagents Quiz
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Questions and Answers

What is the role of phosphorus tribromide (PBr3) in organic chemistry?

  • It is used to convert alcohols to alkyl bromides and carboxylic acids to acid bromides. (correct)
  • It is used as a nucleophile in the Wolff-Kishner reaction for converting carbonyl compounds to alkanes.
  • It is used as an oxidizing agent in the ozonolysis of alkenes and alkynes.
  • It is used as a reducing agent to convert alkynes to cis alkenes.

    • Which statement about ozone (O3) is correct?

  • It is an oxidizing agent used in the ozonolysis of alkenes and alkynes. (correct)
  • It is used as a reducing agent in the conversion of alkynes to cis alkenes.
  • It is used as a nucleophile in the Wolff-Kishner reaction for converting carbonyl compounds to alkanes.
  • It is used to convert alcohols to alkyl bromides and carboxylic acids to acid bromides.

    • What is the role of nickel boride (Ni2B) in organic chemistry?

  • It is used as an oxidizing agent in the ozonolysis of alkenes and alkynes.
  • It is used to convert alcohols to alkyl bromides and carboxylic acids to acid bromides.
  • It is used as a nucleophile in the Wolff-Kishner reaction for converting carbonyl compounds to alkanes.
  • It is used as a reducing agent similar to the Lindlar's catalyst for converting alkynes to cis alkenes. (correct)

    • In the reductive ozonolysis of alkenes, which reagent is used to produce aldehydes or ketones?

    <p>Dimethyl sulfide or zinc (Zn)</p> Signup and view all the answers

    Which reagent is used in the oxidative ozonolysis of alkynes to produce carboxylic acids?

    <p>Water or hydrogen peroxide</p> Signup and view all the answers

    What type of compound is produced in the reductive ozonolysis of alkynes when dimethyl sulfide or zinc (Zn) is used?

    <p>Alpha dicarbonyl compounds</p> Signup and view all the answers

    Which reagent is NOT used in the ozonolysis of alkenes or alkynes?

    <p>Nickel boride (Ni2B)</p> Signup and view all the answers

    In the conversion of alcohols to alkyl bromides, which reagent is used?

    <p>Phosphorus tribromide (PBr3)</p> Signup and view all the answers

    Which reagent is used in the conversion of carboxylic acids to acid bromides?

    <p>Phosphorus tribromide (PBr3)</p> Signup and view all the answers

    In the Wolff-Kishner reaction, which reagent is used for converting carbonyl compounds to alkanes?

    <p>Hydrazine ($\ce{NH2NH2}$)</p> Signup and view all the answers

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