(a) What name is given to a compound that contains carbon and hydrogen only?(b) Hexane is a compound containing carbon and hydrogen.(i) What method is used to obtain hexane from crude oil?(ii) State one use of hexane.(c) Study the flow chart below and answer the questions that follow.(i) Identify reagent L .(iii) Draw the structural formula of gas J(iv) What name is given to the process that takes place in step 5?