STD 12 - 8.2 Carboxylic acids and their derivative — NEET STD 11 Science — Question

Kaushal's method : $\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_3}\xrightarrow{{KCl}}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

Preeti's method : $C{H_3} - CH = C{H_2}\xrightarrow{{C{l_2} + {H_2}O}}$

Raghav's method : $\begin{array}{*{20}{c}}
  {C{H_3} - CH - C{H_3}\xrightarrow[{Pyridine}]{{SOC{l_2}}}} \\ 
  {|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\ 
  {OH\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} 
\end{array}$

Phenol  $\xrightarrow{{Zn\,\,dust}}X\,\xrightarrow[{Anhyd.\,AlC{l_3}}]{{C{H_3}Cl}}\,Y\xrightarrow{{Alkaline\,\,KMn{O_4}}}\,Z$

the product $Z$ is

$2 Al + 3MnO \to Al_2O_3 + 3Mn$

Which of the following is correct? (Atomic weights of $Mn = 55$ and $Al = 27$)