Consider the following structure of hydrocarbon which have double and triple bonds:Which of the following is the correct IUPAC name of above hydrocarbon?

Explanation

The correct IUPAC name for the compound is 3-Methyl-1-penten-4-yne. The hydrocarbon chain is numbered to provide the lowest possible locants to the multiple bonds. The longest chain contains five carbon atoms, with a methyl group on the third carbon, a double bond between the first and second carbons, and a triple bond between the fourth and fifth carbons. Naming priorities dictate that the chain should be numbered from the end nearest to the first point of difference, which is the double bond in this case.Option B incorrectly numbers the alkene and alkyne, giving the triple bond priority over the double bond, which is contrary to IUPAC rules. Option C misplaces both the methyl group and the positions of the multiple bonds. Option D incorrectly positions the double bond, affecting the numbering of the entire compound.