CHEMICAL TECHNOLOGY JNTU UNIVERSITY PREVIOUS YEAR QUESTION PAPER COLLECTION for 2nd year second semester Chemical Engineering students

CHEMICAL TECHNOLOGY JNTU UNIVERSITY PREVIOUS YEAR QUESTION PAPER COLLECTION for 2nd year second semester Chemical Engineering students

CHEMICAL TECHNOLOGY JNTU UNIVERSITY PREVIOUS YEAR QUESTION PAPER COLLECTION for 2nd year second semester Chemical Engineering students

II B.Tech II Semester Regular Examinations, Apr/May 2008

CHEMICAL TECHNOLOGY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

⋆ ⋆ ⋆ ⋆ ⋆

1. (a) Write about end uses of chlorine.
(b) Explain the manufacture of sodium carbonate by any process with the help of
block diagram and mention reactions involved in it. [6+10]
2. (a) What is meant by cryogenics? Explain about liquefaction of gas with the help
of Linde cycle.
(b) Explain in detail about shift converters in steam reforming process. [8+8]
3. (a) Draw a neat flow diagram for sulphuric acid manufacture indicating the com-
ponents.
(b) Give the applications of alum. [10+6]
4. (a) Write short notes on:
i. magnesium oxychloride cement
ii. Pozzolans
(b) Explain the manufacture of lime. [8+8]
5. Describe any one method of manufacturing vinyl chloride. [16]
6. (a) Explain the purpose of refining the oils.
(b) Describe the hydrogenation of oils with equations. [8+8]
7. (a) What is soap? How does it differ from detergent?
(b) Explain the mechanism of cleaning using cleaning agent like soap or detergent.
[8+8]
8. (a) What is a paper? List out different types of paper products.
(b) Discuss the environmental issues associated with paper industry. [6+10]

II B.Tech II Semester Regular Examinations, Apr/May 2008

CHEMICAL TECHNOLOGY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

⋆ ⋆ ⋆ ⋆ ⋆

1. (a) Write about end uses of chlorine.
(b) Explain the manufacture of sodium carbonate by any process with the help of
block diagram and mention reactions involved in it. [6+10]
2. (a) Describe in detail the production of hydrogen by electrolytic method.
(b) Write the end uses of oxygen. [10+6]
3. (a) Write short notes on:
i. Aluminum sulphate
ii. Alum.
(b) Write all the chemical reactions occurring in the manufacturing of sulphur by
Finnish process. [8+8]


4. What is cement? Explain the production of cement by cement rock beneficiation
process with a flow diagram. [16]
5. (a) What is Styrene Butadiene Rubber?
(b) What are the properties of SBR?
(c) What are the uses of SBR? [4+8+4]
6. Discuss the following.
(a) Vegetable oil as a direct product and as a intermediate raw material.
(b) Briefly describe the solvent extraction of oils. [6+10]
7. Mention different methods for soap production and explain any method. [16]
8. Give a detail description of producing paper from pulp emphasize on process cond-
tions. [16]
⋆ ⋆ ⋆ ⋆ ⋆

II B.Tech II Semester Regular Examinations, Apr/May 2008

CHEMICAL TECHNOLOGY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

⋆ ⋆ ⋆ ⋆ ⋆

1. (a) Explain the manufacture of Soda ash by Solvay process with flow diagrams
and chemical reactions.
(b) Explain various processes used for the production of chlorine. [12+4]
2. (a) Name different sources for commercial production of carbon dioxide.
(b) Explain the production of hydrogen by coal gasification method. [6+10]
3. Discuss the production of sulphur by any process. [16]
4. Explain the production of magnesium hydroxide from sea water. [16]
5. Discuss the production of vinyl chloride by any one method, giving the process
details. [16]
6. Describe the hydrogenation of vegetable oils along with the thermodynamic and
kinetic aspects. [16]
7. What are the various steps involved in the production of final commercial soap
starting from the basic raw materials? Explain them briefly. [16]
8. (a) List out various raw materials used for the production of pulp.
(b) What are the various steps generally involved in pulping process? Briefly
explain them. [4+12]
⋆ ⋆ ⋆ ⋆ ⋆

II B.Tech II Semester Regular Examinations, Apr/May 2008

CHEMICAL TECHNOLOGY

(Chemical Engineering)

Time: 3 hours Max Marks: 80

Answer any FIVE Questions

All Questions carry equal marks

⋆ ⋆ ⋆ ⋆ ⋆

1. (a) Explain the working of Diaphragm Cell with a neat sketch.
(b) Write short notes on:
i. Fused Silica
ii. Soda lime glass
iii. Lead glass
iv. Borosilicate glass. [8+8]
2. Explain the production of ammonia by Kellogg process with a neat flow diagram.
[16]
3. Explain the production of sulphur by elemental sulfur mining. [16]
4. Explain the production of magnesium hydroxide from sea water. [16]
5. Describe the production of vinyl chloride by oxychlorination method. [16]
6. (a) Discuss about the chemical composition of oils and fats.
(b) Describe the physical refining of the oils. [8+8]
7. What are the uses of soap? Explain the production of soap by any method. [16]
8. Describe the Kraft pulping process with block diagram. [16]
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