Final answer:
The melting point of titanium tetrachloride (TiCl₄) is -23.2 °C.
Step-by-step explanation:
The melting point of any substance is the temperature at which its state changes from a solid to a liquid. It's also the temperature at which both the solid and liquid phases of a substance exist in equilibrium.
The melting point of titanium tetrachloride (TiCl₄) is -23.2 °C. The other options provided are either not related to the melting point or do not contain sufficient information to determine the melting point. The option 9.37 kJ/mol is more likely related to enthalpy or energy change in a reaction. The melting point is a specific physical property that reflects the temperature at which a substance changes from solid to liquid under atmospheric pressure.