Chemistry - Hydrocarbon Question with Solution | TestHub

$\mathrm{C}{\mathrm{H}}_3\mathrm{O}\mathrm{N}\mathrm{a}\to \mathrm{C}{\mathrm{H}}_3{\mathrm{O}}^{-}+\mathrm{N}{\mathrm{a}}^{+}$
methoxide ion$\left(\mathrm{C}{\mathrm{H}}_3{\mathrm{O}}^{-}\right)$is a strong base, therefore it abstract proton from$3^{\mathrm{o}}$alkyl halide and favours elimination reaction.