Match List-I with List-II
|
List-I (Compound) |
List-II (Uses) |
|
(A). Diazonium salt |
(I). surfactants |
|
(B). Novocain |
(II). antihistaminic drug |
|
(C). Benadryl |
(III). dentistry |
|
(D). Quaternary ammonium salts |
(IV). dyes |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
Amines and their derivatives have many uses; each item here is linked to one property of the compound.
(A) Diazonium salt — This matches (IV) dyes. Diazonium salts couple with phenols and aromatic amines to give coloured azo compounds, and they are intermediates for many other aromatic compounds.
(B) Novocain — This matches (III) dentistry. Novocain, a synthetic amino compound, is a local anaesthetic used in dentistry.
(C) Benadryl — This matches (II) antihistaminic drug. Benadryl is an antihistamine, which contains a tertiary amino group.
(D) Quaternary ammonium salts — This matches (I) surfactants. A quaternary ammonium salt with a long alkyl chain has a charged head and a long hydrophobic tail, so it acts as a cationic surfactant (detergent).
Shortcut: (A)-(IV) appears only in Option (2).
NCERT (2026-27 edition):
Amines
