NEETChemistryAmines
Match List I with List II. (A) Guanidine (I) Strongest organic base due to equivalent resonance structures of conjugate acid (B) Acetamide (II) Very weak base; lone pair delocalized over oxygen (C) Diethylamine (III) Secondary aliphatic amine; stronger base than primary in aqueous medium (D) Aniline (IV) Weaker base than ammonia due to resonance with benzene ring Choose the correct answer from the options given below
Options
- A(A) (I), (B) (IV), (C) (III), (D) (II)
- B(A) (III), (B) (II), (C) (I), (D) (IV)
- C(A) (I), (B) (II), (C) (IV), (D) (III)
- D(A) (I), (B) (II), (C) (III), (D) (IV)
Correct answer
D. (A) (I), (B) (II), (C) (III), (D) (IV)
Step-by-step solution
(A) Guanidine is a very strong base because protonation yields the guanidinium ion, which is stabilized by three equivalent resonance structures, matching with (I). (B) Acetamide is an amide, making it a very weak base because the nitrogen lone pair is delocalized into the carbonyl group, matching with (II). (C) Diethylamine is a secondary aliphatic amine, which is a stronger base than primary amines in aqueous medium due to a combination of inductive effect and solvation, matching with (III). (D) Aniline is an aro