(i) What is the purpose of the contact process? (ii) Name the two gases that are combined during the contact process. (iii) Name the catalyst used in the process. (iv) Write the equation for the reaction between zinc and the final product of the contact process.
Write balanced equations for the three chemical reactions that take place during the conversion of sulphur dioxide to sulphuric acid in the contact process. Name the catalyst used in the contact process.