Write the equation for the preperation of carbon tetrachloride from methane.
Preparation of carbon tetrachloride from the methane:
$$CH_4+Cl_2 \xrightarrow [Or\ 600K]{Diffused \ sunlight}CH_3Cl+HCl$$
$$CH_3Cl+Cl_2\longrightarrow CH_2Cl_2+HCl$$
$$CH_2Cl_2+Cl_2\longrightarrow CHCl_3+HCl$$
$$CHCl_3+Cl_2\longrightarrow CCl_4+HCl$$