Which of the following halogenated compounds is not used in Williamson$'$s synthesis?

The substances used for the preparation of ether by Williamson's synthesis are:

From Williamson's synthesis,the preparation of which of the following is possible?

Give the names of the reagents and equations for the preparation of the following ethers by Williamson synthesis:
$(i)$ Methoxybenzene $(ii)$ Methoxyethane $(iii)$ Ethoxybenzene $(iv)$ Ethoxyethane

Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tertiary ether cannot be prepared by this method. Explain.

Write the names of reagents and equations for the preparation of the following ethers by $Williamson$ synthesis:
$(i)$ $1-Propoxypropane$
$(ii)$ $Ethoxybenzene$
$(iii)$ $2-Methoxy-2-methylpropane$
$(iv)$ $1-Methoxyethane$