Explain the reactions involved in the preparation of viscose rayon.

Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.

Select the reactions involved in the reaction above reaction :

Write and explain the reactions involved in the extraction of gold.

Write the reactions involved in the preparation of : (a) Teflon (b) Orlon (c) PVC

(a). What is bleaching powder? How is bleaching powder prepared? Write chemical equation of the reaction involved in the preparation of bleaching powder. (b) What happens when bleaching powder reacts with dilute sulphuric acid? Give equation of the reaction involved. (c) State two important uses of bleaching powder.