MHT CET 2026 Chemistry question

What is the correct IUPAC name for a molecule that has two amino groups in opposing (para) locations around a benzene ring?

(A)Benzenediamine
(B)Benzene-1,4-diamineCorrect
(C)p-Aminoaniline
(D)4-Aminobenzenamine

Answer: (B)

Solution

In IUPAC nomenclature a benzene ring with two groups is named as a diamine of benzene, with locants showing the positions. The para position corresponds to carbons 1 and 4, so the name is benzene-1,4-diamine (common name: p-phenylenediamine), option (B). "Benzenediamine" (A) lacks

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Question ID VK-098499