Amines Knowledge-Based Download PDF

Questions

1. 1.

   Which of the following functional groups is formed when a primary amine reacts with an acyl chloride?

   • A) An ester
   • B) An ether
   • C) An amide
   • D) A nitrile
2. 2.

   Which of the following compounds is produced when ethanamine reacts with hydrochloric acid?

   • A) Chloroethane
   • B) Ethylammonium chloride
   • C) Diethylamine
   • D) Ethanamide
3. 3.

   Which of the following features is primarily responsible for the basic behavior of amines in chemical reactions?

   • A) The cleavage of the carbon–nitrogen single bond to liberate hydroxide ions in aqueous solution
   • B) The presence of an empty valence orbital on the nitrogen atom that can accept an incoming electron pair
   • C) The high polarity of the nitrogen–hydrogen bond that causes spontaneous dissociation of protons
   • D) The unshared electron pair on the nitrogen atom that is available to coordinate with a proton
4. 4.

   Which of the following compounds is classified as a primary ($1^\circ$) amine?

   • A) Trimethylamine
   • B) Diethylamine
   • C) 2-Methylpropan-2-amine
   • D) N-Methylaniline
5. 5.

   Which of the following amines cannot form intermolecular hydrogen bonds between its own molecules?

   • A) Ethylamine
   • B) Dimethylamine
   • C) Trimethylamine
   • D) Methylamine