Question

Convert
Propane
to
Pent-2 -yne​

Answer 1

propane + Cl2 + h(nu) = 1 propyl chloride + Mg dry ether = ch3ch2ch2 Mg Cl + ethylene epoxide = 1-pentyl alcohol + conc sulphuric acid = pent-1-yne + hbr = 2 bromopentane + alcoholic KOH = pent-2-yne