Element 'X' reacts with chlorine to form a chloride compound of formula XCl4. 'X' would most likely belong to the same group in the periodic table as that of:
The formula of the given chloride compound is XCl4. Using the criss-cross method we understand that the valency of X is four and chlorine is one. Hence it can be concluded that X is present in group fourteen of the periodic table. In the given options, silicon belongs is a group fourteen element.