Download JNTUK B-Tech 2020 R19 CE 1204 Engineering Chemistry Model Question Paper

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[Code : B19BS1204]
I B.Tech II Semester (R19) Regular Examinations.
ENGINEERING CHEMISTRY
(Common to CE & ME)
MODEL QUESTION PAPER

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Answer ONE Question from EACH UNIT.
All questions carry equal marks.
Max. Marks :75M

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CO |KL |M UNIT -1
1. a). What is hardness? How it is determined by EDTA method? Explain. 1 1 8
b). Describe with equations how water can be softened using Lime & Soda Process 1 2 7
OR
2. a). Discuss various sterilizing methods used in municipal water treatment. 1 2 8

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b). Illustrate the reverse osmosis Process with a neat diagram. 1 2 7
UNIT - 11
3. a). Explain the Proximate analysis of coal and give its significance. 2 2 8
b). Explain the fractional distillation of crude oil. 2 2 7
OR

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4. a). Write notes on (i)Knocking (ii)CNG 2 1 8
b). How Synthetic Petrol can be prepared by Bergius Process. 2 1 7
UNIT - 1II
5. a). Explain the mechanism of electrochemical theory of corrosion with neat diagram. 3 2 8
b). Describe briefly about cathodic Protection. 3 2 7

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OR
6. a). Explain Hydrogen — Oxygen fuel cell with neat cell diagram 3 2 8
b). Discuss on various constituents of Paint. 3 6 7
UNIT -1V
7. a). Explain the mechanism of free radical Polymerization reaction with a suitable example. 4 2 8

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b). Distinguish between thermoplastics and thermosetting resins. 4 4 7
OR
8. a). What are conducting Polymers? Discuss the applications of conducting Polymers. 4 1 8
b). Write notes on Bu Na— S and Bu Na—N. 4 1 7
UNIT -V

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9. a). Discuss chemistry involved in setting and hardening of cement? 5 6 8
b). What are refractories? Discuss the classification of refractories. 5 1 7
OR
10. a). Write detailed account of various types of ceramics, their Properties and uses. 5 1 8
b). What are insulators? How are they are classified? Give examples. 5 1 7

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