Aldehydes, Ketones, and Aldol Condensation
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Questions and Answers

What is the preferred reason for using thionyl chloride (SOCl2) in reactions involving carboxylic acids?

  • It reacts with ammonia to give amides.
  • It helps in decarboxylation reactions.
  • It reduces carboxylic acids to primary alcohols.
  • It escapes the reaction mixture as gas. (correct)

    • Which reagent is best suited for reducing carboxylic acids to primary alcohols?

  • Diborane
  • Red phosphorus
  • Sodium borohydride
  • Lithium aluminium hydride (correct)

    • What happens when carboxylic acids lose carbon dioxide upon heating their sodium salts with sodalime?

  • They produce esters.
  • They form ammonium salts.
  • They undergo halogenation.
  • They give hydrocarbons. (correct)

    • What is the Kolbe electrolysis reaction known for?

    <p>Decarboxylating alkali metal salts of carboxylic acids.</p> Signup and view all the answers

    Which functional group is not easily reduced by diborane?

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

    What type of reaction occurs when carboxylic acids having an a-hydrogen are halogenated?

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

    What is the product obtained when ammonium salt formed from carboxylic acid is further heated at high temperatures?

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

    What is the function of red phosphorus in halogenation reactions involving carboxylic acids?

    <p>Acts as a catalyst for halogenation.</p> Signup and view all the answers

    What happens when sodium borohydride reacts with a carboxylic group?

    <p>It reduces the carboxyl group.</p> Signup and view all the answers

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