Which catalyst is used in the conversion of chlorobenzene to phenol by the Raschig process?

The following equation illustrates:
$C_6H_5Cl + 2NaOH \xrightarrow{623 \ K, 300 \ atm} C_6H_5ONa + NaCl + H_2O$

Identify the substrate $X$ in the following reaction. $X + O_2 \text{ (air)}$ $\xrightarrow[\text{ii) dil } HCl, \Delta]{\text{i) Co-naphthenate, } 423 \ K} \text{Phenol} + \text{Acetone}$

The cumene process is the most important commercial method for the manufacture of phenol. Cumene is:

Write the chemical reaction for the preparation of phenol from chlorobenzene.

Name the catalyst used in the commercial preparation of phenol.