Distinguish between soil erosion and soil degradation.

Give a brief account of physiogeographic zones of India.

 Explain renewable and non-renewable resources giving suitable examples.

Write the steps involved in the synthesis of pregabalin.

Briefly explain PETRETEC process.

What is PET? Write its uses.

How is white paper produced? Explain.

What is EPS? Give its uses.

 Give a brief account of insecticides developed by Rohm and Haas.

What is DCOI? Write its structure and use. List the advantages of DCOI as compared to ТВТО.

How BHT is produced? Write the scheme of synthesis with reactions.

How is catechol produced starting from benzene? Give the sequence of reactions involved.

Discuss the use of polymers containing fluorine atoms in the tail part for dissolving industrial material.

Write the steps involved in the Boots synthesis of ibuprofen.

Explain the formation of photochemical smog using a suitable diagram.

Give any two examples of the greenhouse gases.

Which aspects related to the toxicity of a chemical should be kept in mind while making a wiser choice?

 How would you modify a molecule if it contains a toxic group in its structure?

What are oxidation and reduction reactions? Give one example of each type of theses reactions.

How would you proceed for preparing a chemical compound? Discuss the aspects related to planning, requirements and safety for such a synthesis.