doubt..

no.
In the beginning, the Cl₂ will react with CH₄ to give CH₃Cl only. But when concentration of chloromethane increases, then there is competition between the methane and chloromethane to react with chlorine. When [chloromethane]>[methane] then chlorine reacts with chloromethane to give dichloromethane.
Similarly when [dichloromehtane]>[chloromethane] then chlorine will react with dichloromethane to form trichloromethane and similarly CCl₄ will also form