Chemistry - Hydrocarbon Question with Solution | TestHub

Since diketone is produced, therefore, the hydrocarbon must be an alkyne. The structure of diketone shows that triple bonded carbons are$-{\mathrm{C}}^3\equiv {\mathrm{C}}^4-$. Hence, the alkyne is$\mathrm{C}{\mathrm{H}}_3\mathrm{C}{\mathrm{H}}_2\mathrm{C}\equiv \mathrm{C}\mathrm{C}{\mathrm{H}}_2\mathrm{C}{\mathrm{H}}_2\mathrm{C}{\mathrm{H}}_3.$