Acylation and Benzoylation Reactions Quiz
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Questions and Answers

What is the product formed when primary aliphatic amines react with nitrous acid?

  • Amides
  • Alcohols
  • Aliphatic diazonium salts (correct)
  • Isocyanides
  • Which type of amines do not show the carbylamine reaction?

  • Aromatic amines
  • Quaternary amines
  • Secondary and tertiary amines (correct)
  • Primary amines
  • What is the purpose of using nitrous acid in the reaction with primary aliphatic amines?

  • To form alcohols
  • To form aliphatic diazonium salts (correct)
  • To form isocyanides
  • To form amides
  • Which compound is formed when chloroform and ethanolic potassium hydroxide react with primary amines?

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

    What is the foul-smelling substance formed in the carbylamine reaction?

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

    What is used in the estimation of amino acids and proteins?

    <p>Nitrogen gas</p> Signup and view all the answers

    What property of amines makes them reactive in chemical reactions?

    <p>Presence of unshared pair of electrons over the nitrogen atom</p> Signup and view all the answers

    How do amines behave when reacting with acids?

    <p>React with acids to form salts</p> Signup and view all the answers

    Why are amine salts soluble in water but insoluble in organic solvents like ether?

    <p>Due to the ionic nature of salts</p> Signup and view all the answers

    How do amines behave when treated with a base like NaOH?

    <p>React to form salts</p> Signup and view all the answers

    What property allows amines to behave as Lewis bases?

    <p>Presence of unshared pair of electrons on nitrogen atom</p> Signup and view all the answers

    How do amines react with mineral acids?

    <p>Form ammonium salts</p> Signup and view all the answers

    Which class of compounds is formed when aromatic amines react with nitrous acid?

    <p>Diazonium salts</p> Signup and view all the answers

    How do secondary and tertiary amines react with nitrous acid compared to aromatic amines?

    <p>They form sulphonamides.</p> Signup and view all the answers

    What is the product of the reaction between benzenesulphonyl chloride and primary amine?

    <p>N-ethylbenzenesulphonyl amide</p> Signup and view all the answers

    Why is the sulphonamide soluble in alkali?

    <p>Due to the presence of acidic hydrogens.</p> Signup and view all the answers

    Why is N, N-diethylbenzenesulphonamide insoluble in alkali?

    <p>It contains no acidic hydrogens.</p> Signup and view all the answers

    Why do tertiary amines not react with benzenesulphonyl chloride?

    <p>They lack a hydrogen atom attached to nitrogen.</p> Signup and view all the answers

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