In the following reaction, the product ‘R’ is CH Cl H O Hotiron tube AlCl CaC P Q R -> -> -> (AFMC 2010)

The following reaction takes place as follows: First calcium carbide on reaction with water forms acetylene which on further reaction with hot iron tube forms benzene. Benzene on reaction with methyl chloride with aluminum chloride forms toluene Hence, the correct option is (c).