Download JNTUK B-Tech 2020 R19 ECE 1105 Applied Chemistry Model Question Paper

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I B.Tech II Semester (R19) Regular Examinations.

APPLIED CHEMISTRY

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(Common to CSE, ECE & IT)

MODEL QUESTION PAPER

Time : 3Hrs Max. Marks : 75M

Answer ONE Question from EACH UNIT.

All questions carry equal marks.

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UNIT -1

1. a). Explain the mechanism of free radical Polymerization reaction with a suitable example. (CO 1 | KL 2)
   b). Distinguish between thermoplastic and thermosetting resins. (CO 1 | KL 4)
   OR
2. a). What are conducting Polymers? Discuss the applications of conducting Polymers. (CO 1 | KL 1)
   

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   b). Write notes on Bu Na — S and Bu Na — N. (CO 1 | KL 1)

UNIT - II

1. a). Explain the Proximate analysis of coal and give its significance. (CO 2 | KL 2)
   b). Explain Photovoltaic cell with neat diagram. (CO 2 | KL 1)
   OR

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2. a). Explain the fractional distillation of crude oil. (CO 2 | KL 1)
   b). How synthetic Petrol can be prepared by Berguis Process. (CO 2 | KL 1)

UNIT - III

1. a) Explain the mechanism of electrochemical theory of corrosion with neat diagram. (CO 3 | KL 1)
   b). Describe briefly abt cathodic Protection. (CO 3 | KL 2)
   

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   OR
2. a). Explain Hydrogen — Oxygen fuel cell with neat cell diagram (CO 3 | KL 1)
   b). Discuss on various constituents of Paint. (CO 3 | KL 2)

UNIT - IV

1. a). What is hardness? How it is determined by EDTA method? Explain. (CO 4 | KL 1)
   

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   b). Describe with equations how water can be softened using Lime & Soda Process (CO 4 | KL 1)
   OR
2. a) Discuss various sterilizing methods used in municipal water treatment. (CO 4 | KL 2)
   b). Illustrate the reverse osmosis Process with a neat diagram. (CO 4 | KL 2)

UNIT - V

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1. a) Discuss chemistry involved in setting and hardening of cement? (CO 5 | KL 2)
   b). What are refractories? Discuss the classification of refractories. (CO 5 | KL 1)
   OR
2. a). Write the engineering applications of Liquid Crystals. (CO 5 | KL 1)
   b). Explain the stoichiometric defects in crystals. (CO 5 | KL 2)

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