What are redox reactions?

A number of phenomenon, both physical, chemical and biological are concerned with redox reactions. These reactions find extensive use in pharmaceutical, industrial and agricultural areas. Answer the following questions on the basis of above paragraph : (a) What are redox reactions ? (b) Give the application of redox reactions in photosynthesis.

What are Etard reaction?

Discuss the hydrolysis of XeF_3 . Does the hydrolysis of XeF_6 lead to a redox reaction ?

What are complex reactions ? Give an example.

Explain: Can a displacement reaction be a redox reaction?

Define disproportionisation and simple displacement redox reactions.

Distinguish between direct and indirect redox reactions.