Which of the following bases is the strongest in an aqueous medium?
Acid anhydrides on reaction with primary amines give
3. secondary amine
Match the reactions given in Column I with the statements given in Column II.
|Column I||Column II|
|A. Ammonolysis||1. Amine with a lesser number of carbon atoms|
|B. Gabriel phthalimide synthesis||2. Detection test for primary amines.|
|C. Hofmann bromamide reaction||3. Reaction of phthalimide with KOH and R—X|
|D. Carbylamine reaction||4. Reaction of alkyl halides with NH3|
|Assertion (A):||Acylation of amines gives a monosubstituted product whereas alkylation of amines gives a polysubstituted product.|
|Reason (R):||Acyl group sterically hinders the approach of further acyl groups.|
|1.||Both (A) and (R) are true and (R) is the correct explanation of (A).|
|2.||Both (A) and (R) are true but (R) is not the correct explanation of (A).|
|3.||(A) is true but (R) is false.|
|4.||(A) is false but (R) is true.|