BT-101 (GS) – Engineering Chemistry
• Attempt any five questions.
• All questions carry equal marks.
a)Unit 1Differentiate between hard water and soft water. What is meant by hardness of water? Write various units to express hardness of water giving their relationship.
Differentiate between hard water and soft water. What is meant by hardness of water? Write various units to express hardness of water giving their relationship.
b)Unit 2Discuss the following terms:
i) Blow down process
ii) Carry over
Discuss the following terms:
i) Blow down process
ii) Carry over
a)Unit 2What are sludge and scale in boilers? How are they formed? Suggest any two methods to prevent their formation.
What are sludge and scale in boilers? How are they formed? Suggest any two methods to prevent their formation.
b)Unit 2How is water softened by Ion exchange method? Explain in details with a neat diagram.
How is water softened by Ion exchange method? Explain in details with a neat diagram.
a)Unit 3What is Lubrication? Give classification of lubricants.
What is Lubrication? Give classification of lubricants.
b)Unit 3Discuss following properties of lubricant. Giving their significance.
i) Viscosity index
ii) Pour point and cloud point
Discuss following properties of lubricant. Giving their significance.
i) Viscosity index
ii) Pour point and cloud point
a)Unit 4Illustrate free radical mechanism of polymer.
Illustrate free radical mechanism of polymer.
b)Unit 4Explain about Biodegradable polymers with suitable example.
Explain about Biodegradable polymers with suitable example.
a)Unit 5Explain water line corrosion and galvanic corrosion.
Explain water line corrosion and galvanic corrosion.
b)Unit 5What is oxidation corrosion and how does it take place? Describe the mechanism of oxidation corrosion.
What is oxidation corrosion and how does it take place? Describe the mechanism of oxidation corrosion.
Unit 6What is Spectroscopy? Describe about IR spectroscopy by giving principle, instrumentation and applications.
What is Spectroscopy? Describe about IR spectroscopy by giving principle, instrumentation and applications.
Unit 7What is Periodic Table? Write trends of following in a group and in a period giving suitable reason:
i) Electro negativity
ii) Atomic size
iii) Electron affinity
What is Periodic Table? Write trends of following in a group and in a period giving suitable reason:
i) Electro negativity
ii) Atomic size
iii) Electron affinity
Unit 5, Unit 4, Unit 6, Unit 7Write brief note on (Any two)
i) Phase diagram of single component systems
ii) Vulcanized rubber
iii) Electronic shifts
iv) Oxidation states
Write brief note on (Any two)
i) Phase diagram of single component systems
ii) Vulcanized rubber
iii) Electronic shifts
iv) Oxidation states