i)  $C{H}_{3}COONa\underset{\Delta }{\overset{NaOH+CaO}{\to }}X\left(majorproduct\right)$
ii)  $\text{'}X\text{'}\underset{\left(monochlorination\right)}{\overset{C{l}_2/hv}{\to }}Y$
iii)  $Y\underset{Na}{\overset{Dryether}{\to }}Z$
‘Z’ can be obtained at the anode as a major product during Kolbe’s electrolysis by using