Target Exam

CUET

Subject

Chemistry

Chapter

Organic: Amines

Question:

Match List-I (Common name) with List-II (IUPAC name)

List-I Common Name

List-II IUPAC name

(A) Aniline

(I) N-Phenylethanamide

(B) Acetanilide

(II) Benzenamine

(C) Sulphanilic acid

(III) Prop-2-en-1-amine

(D) Allylamine

(IV) p-aminobenzene sulphonic acid

Choose the correct answer from the options given below:

Options:

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

(A)-(I), (B)-(II), (C)-(III), (D)-(IV)

(A)-(I), (B)-(II), (C)-(IV), (D)-(III)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

Correct Answer:

(A)-(II), (B)-(I), (C)-(IV), (D)-(III)

Explanation:

The correct answer is Option (1) → (A)-(II), (B)-(I), (C)-(IV), (D)-(III)

List-I Common Name

List-II IUPAC name

(A) Aniline

(II) Benzenamine

(B) Acetanilide

(I) N-Phenylethanamide

(C) Sulphanilic acid

(IV) p-aminobenzene sulphonic acid

(D) Allylamine

(III) Prop-2-en-1-amine

(A) Aniline $\rightarrow$ (II) Benzenamine: Aniline is a primary aromatic amine. The $\text{-NH}_2$ group attached to a benzene ring is systematically named Benzenamine.

(B) Acetanilide $\rightarrow$ (I) N-Phenylethanamide: Acetanilide is an amide derived from aniline and acetic acid. The two-carbon parent chain is ethanamide, and the nitrogen atom is substituted with a phenyl group ($\text{C}_6\text{H}_5$), hence N-Phenylethanamide.

(C) Sulphanilic acid $\rightarrow$ (IV) p-aminobenzene sulphonic acid: Sulphanilic acid is an amino sulfonic acid. The amino group ($\text{-NH}_2$) and the sulfonic acid group ($\text{-SO}_3\text{H}$) are in the para position on the benzene ring, making it p-aminobenzene sulphonic acid.

(D) Allylamine $\rightarrow$ (III) Prop-2-en-1-amine: Allylamine has a three-carbon chain with a double bond and an amine group. The longest chain is propene, and the amine group ($\text{-NH}_2$) is on $\text{C}1$, while the double bond starts at $\text{C}2$. Hence, Prop-2-en-1-amine.