JEE Main Chemistry question

Chemistry Organic Chemistry - Some Basic Principles and Techniques JEE Main

Which one is NOT a correct IUPAC name?

(A)CH₃–CH(OH)–CH(CH₃)–CH₃, named 3-methylbutan-2-ol
(B)CH₃CH₂CH₂–CH(CH₂CH₃)–CH(CH₃)–CH₂CH₃, named "3-methyl-4-ethylheptane"Correct
(C)A structure named 2-ethyl-3-methylbut-1-ene
(D)CH₃–C≡C–CH(CH₃)₂, named 4-methylpent-2-yne

Answer: (B)

Solution

Substituent prefixes must be cited in strict alphabetical order. Since "ethyl" precedes "methyl"

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Question ID VK-139586