CH3-CH=CH-CH(CH3)-CH3 The IUPAC nomenclature of the compound above is

 CH3-CH=CH-CH-CH3 

                         |

                        CH3

The IUPAC nomenclature of the compound above is

A. 2-methylpent-4-ene

B. 4-methylpent-3-ene

C. 2-methylpent-3-ene

D. 4-methylpent-2-ene

 The correct answer is D. 4-methylpent-2-ene ✅

Explanation:

• The longest carbon chain has 5 carbon atoms → pent-

• Number the chain from the end that gives the double bond the lowest number

  • From the left, the double bond is between C-2 and C-3 → pent-2-ene

• There is a methyl (–CH₃) group on carbon 4

So the correct IUPAC name is 4-methylpent-2-ene.

👉 Final Answer: D

PQN: 49