Name the micro-organism which is used for the large scale production of alcohol.
Describe how sodium hydrogen carbonate (baking soda) is produced on a large scale. Write the equation of the reaction involved.
Write balanced chemical equation for the reaction between zinc and dilute sulphuric acid. (i) What is the purpose of the contact process? (ii) Name the catalyst used in the contact process. (iii) Write the balanced equation for the reaction in the contact process, which takes place in the presence of catalyst.