JNTUK B.Tech R19 2020 Model Question Papers || JNTU kakinada (All Branches)
I B.Tech II Semester (R19) Regular Examinations.
APPLIED CHEMISTRY
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(Electrical & Electronics Engineering)
MODEL QUESTION PAPER
Time : 3Hrs Max. Marks :75 M
Answer ONE Question from EACH UNIT.
All questions carry equal marks.
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| CO | KL | ||
|---|---|---|---|
| UNIT -1 | |||
| 1. | |||
| a). | Explain the mechanism of free radical Polymerization reaction with a suitable example. | 1 | 2 |
| b). | Distinguish between thermoplastic and thermosetting resins. | 1 | 4 |
| OR | |||
| 2. | |||
| a). | What are conducting Polymers? Discuss the applications of conducting Polymers. | 1 | 1 |
| b). | Write notes on Bu Na — S and Bu Na — N. | 1 | 1 |
| UNIT - 11 | |||
| 3. | |||
| a). | Explain the Proximate analysis of coal and give its significance. | 2 | 2 |
| b). | Explain Photovoltaic cell with neat diagram. | 2 | 1 |
| OR | |||
| 4. | |||
| a). | Explain the fractional distillation of crude oil. | 2 | 1 |
| b). | How synthetic Petrol can be prepared by Berguis Process. | 2 | 1 |
| UNIT - 111 | |||
| 5. | |||
| a) | Explain the mechanism of electrochemical theory of corrosion with neat diagram. | 3 | 1 |
| b). | Describe briefly abt cathodic Protection. | 3 | 2 |
| OR | |||
| 6. | |||
| a). | Explain Hydrogen — Oxygen fuel cell with neat cell diagram | 3 | 1 |
| b). | Discuss on varis constituents of Paint. | 3 | 2 |
| UNIT -1V | |||
| 7. | |||
| a). | What is hardness? How it is determined by EDTA method? Explain. | 4 | 1 |
| b). | Describe with equations how water can be softened using Lime & Soda Process | 4 | 1 |
| OR | |||
| 8. | |||
| a) | Discuss varis sterilizing methods used in municipal water treatment. | 4 | 2 |
| b). | Illustrate the reverse osmosis Process with a neat diagram. | 4 | 2 |
| UNIT -V | |||
| 9. | |||
| a). | Discuss chemistry involved in setting and hardening of cement? | 5 | 2 |
| b). | What are refractories? Discuss the classification of refractories. | 5 | 1 |
| OR | |||
| 10. | |||
| a). | Write the engineering applications of Liquid Crystals. | 5 | 1 |
| b). | Explain the stoichiometric defects in crystals. | 5 | 2 |
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