Unit Processes & Chemical Technology — Summer 2021

Briefly explain the role of vitamins in human life.

Discuss about the raw materials used in ceramic industries.

Define analgesics and antipyretics. Explain the manufacturing process of aspirin with a neat flow diagram.

Define PVC of paints. What is its significance?

What are dyes? How are they classified according to application?

Describe the manufacture of caustic soda and chlorine by membrane cell process. Also state the advantages of using membrane cell.

State the applications of sulfuric acid. Describe the manufacture of sulfuric acid by DCDA process.

What are the main constituents of paints? Explain.

Write a short note on industrial coatings.

With a neat flow diagram, describe the manufacturing process of chrome blue black.

Discuss about the classification of drugs and pharmaceuticals.

What is ascorbic acid? How is it produced?

What are antibiotics? Explain the manufacture of penicillin with a neat process flow diagram.

What is absolute alcohol? How is it produced from industrial alcohol?

Briefly explain the manufacturing of paper.

Describe the manufacturing of butyl alcohol and citric acid by fermentation.

What are refractories? State its types.

Briefly explain setting and hardening of cement.

With a neat diagram describe the manufacturing of cement by wet process. Also write the reactions involved in the process.

What is mixed acid? Cite and explain one industrial application of it.

Briefly explain the mechanism of hydrogenation of nitrobenzene.

Describe the pulp manufacturing by Kraft (sulfate) process. Also discuss the difference between sulfate process and sulfite process.

What do you understand by C1, C2 and C3 chemicals? State one use of each.

State four properties of petroleum products and their significance.

Write short notes on processing of petroleum and treatment techniques.