BT-101 (GS) – Engineering Chemistry

B.Tech. I & II Semester
Examination, December 2024
Grading System (GS)
Max Marks: 70 | Time: 3 Hours

Note:
i) Attempt any five questions.
ii) All questions carry equal marks.

Previous Year Questions

Q.1 a) What is Temporary and Permanent hardness of water? How is it differentiated?
b) Write a note on scales and sludges.

Answer of (a):To be posted here!


Answer of (b):To be posted here!

Q.2 a) a) Explain Ion-exchange process of water softening with neat diagram.
b) What are boiler troubles? How are they caused? Suggest steps for minimizing the boiler troubles.

Answer of (a): To be posted here!


Answer of (b):To be posted here!

Q.3 a) Give short note on mechanism thick film of lubrication process.
Explain about flash and fire point and their significance.

Answer of (a):To be posted here!


Answer of (b):To be posted here!

Q.4 a) What are polymers? Give their classification with examples.
Give preparation, properties and uses of Bakelite.

Answer of (a):To be posted here!


Answer of (b): To be posted here!

Q.5 a) What is oxidation corrosion and how does it take place? Describe the mechanism of oxidation corrosion.
b) Explain water line corrosion and galvanic corrosion.

Answer of (a):To be posted here!


Answer of (b): To be posted here!

Q.6 What is 'spectroscopy? Discuss about Ultra-violet spectroscopy principle, instrumentation and applications.

Answer of (a):To be posted here!

Q.7 a) Write short notes on Electro negativity variation in groups and periods.
b) Explain about polarisability.
Write brief note on (Any two):
i) Alkalinity
ii) Emulsification number
iii) Conducting polymers
iv) Atomic and Ionic sizes

Answer of (a): To be posted here!


Answer of (b):To be posted here!