NEETChemistryAmines
Match List-I with List-II. List-I (Reactions) List-II (Characteristics/Products) (A) Gabriel phthalimide synthesis (I) Yields an amine with one carbon less (B) Hoffmann bromamide degradation (II) Yields an alcohol and N ₂ gas (C) Carbylamine reaction (III) Produces a foul-smelling compound (D) Reaction of 1^ aliphatic amine with HNO ₂ (IV) Prepares only primary aliphatic amines Choose the correct answer from the opti
Options
- A(A)-(IV), (B)-(I), (C)-(III), (D)-(II)
- B(A)-(I), (B)-(IV), (C)-(III), (D)-(II)
- C(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
- D(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
Correct answer
A. (A)-(IV), (B)-(I), (C)-(III), (D)-(II)
Step-by-step solution
Gabriel phthalimide synthesis (A) is used exclusively for the preparation of primary aliphatic amines (IV) because secondary and tertiary amines cannot be formed, and aryl halides do not undergo nucleophilic substitution with the phthalimide anion. Hoffmann bromamide degradation (B) involves the treatment of an amide with bromine in an aqueous or ethanolic solution of sodium hydroxide, yielding a primary amine with one carbon less than the parent amide (I). Carbylamine reaction (C) is given only by primary amines (