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 (A)</p> Signup and view all the answers

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

<p>Isocyanides (D)</p> Signup and view all the answers

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

<p>Nitrogen gas (D)</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 (A)</p> Signup and view all the answers

How do amines behave when reacting with acids?

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

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

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

How do amines react with mineral acids?

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

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

<p>Diazonium salts (A)</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. (A)</p> Signup and view all the answers

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

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

Why is the sulphonamide soluble in alkali?

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

Why is N, N-diethylbenzenesulphonamide insoluble in alkali?

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

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