: 00000CH409121902 Pages: 2

Reg No.: Name:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

Seventh Semester B.Tech Degree Examination (Regular and Supplementary), December 2020

Course Code: CH409
Course Name: ORGANIC CHEMICAL TECHNOLOGY

Max. Marks: 100 Duration: 3 Hours
PARTA
Answer any two full questions, each carries 15 marks. Marks
1 a) Explain vegetable oil extraction process with neat flow diagram. (7)
b) Write and explain any four animal oils. (6)
c) Write the significance of hydrogenation process of oils. (2)

2 a) With a neat flow diagram explain the manufacture of ethanol by fermentation (7)

process. Write the major chemical reactions involved in the process.

b) Describe any four methods of food processing. (8)
3 a) Witha neat flow diagram explain the manufacture of raw cane sugar. (8)
b) Explain the manufacture of starch from maize with a neat flow diagram. (7)
PART ‏تا‎
‎Answer any two full questions, each carries 15 marks.
4 a) Differentiate the sulphate and sulphite process for pulp manufacture (3)
b) Explain the stock preparation process in paper making. (5)
c) Explain the production of glycerine with a neat flow diagram. (7)

5 a) Explain the manufacture of chloromethane with neat flow diagram. Write the (8)
reactions involved.
b) With a neat flow diagram explain the manufacture of formaldehyde. Write the (7)
major engineering problems involved in the process.
6 a) Explain the manufacture of paper from wood pulp with a neat diagram. (8)
b) With a neat flow diagram explain the manufacturing of perchloroethylene. Write (൦൬
the major reactions involved.
PART C
Answer any two full questions, each carries 20 marks.
7 a) Write down the different methods used for phenol production. (3)

b) Explain the production of phenol by cumene process with a neat diagram. List (9)

the uses of phenol.

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