AIIMS2018Chemistry-Organic Chemistry

AIIMS 2018 Chemistry IUPAC Nomenclature MCQ Question

Type: MCQ-fact-Easy-Class 11

Write IUPAC name of following

Question diagram
A

2-chloro-1-methoxy-4-nitrobenzene

B

2-chloro-4-nitro anisole

C

3-chloro-4-methoxy-1-nitrobenzene

D

1-chloro-2-methoxy-5-nitrobenzene

Correct Answer

Option C

Detailed Explanation

The IUPAC name "Chloro-1-methoxy-4-nitrobenzene" indicates a benzene ring with a chloro group at position 1, a methoxy group (-OCH₃) at position 1, and a nitro group (-NO₂) at position 4. This naming follows the standard IUPAC conventions for substituents on aromatic compounds, where substituents are listed in alphabetical order, and the positions are numbered to give the lowest possible numbers to the substituents. Other options are incorrect as they do not accurately reflect the functional groups and their respective positions on the benzene ring as described in the question.

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