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Chemistry Question on Organic Chemistry- Some Basic Principles and Techniques

Names of some compounds are given. Which one is not correct in IUPAC system ?

A

3-methyl-2 butano

B

CH3 – C ≡ C - CHCH32 4-methyl-2-pentyne

C

2-ethyl-3 methyl-but-l-ene

D

3-methyl-4 ethyl heptane

Answer

3-methyl-4 ethyl heptane

Explanation

Solution

Due to the alphabetical arrangement of the substituents, the correct IUPAC nomenclature is 4-Ethyl-3-methyl heptane.

Therefore, the correct option is (D)