Download JNTUK B-Tech 2020 R19 CSE B19BS1105 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 : 75 M

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.
   b). Distinguish between thermoplastic and thermosetting resins.

OR

1. a). What are conducting Polymers? Discuss the applications of conducting Polymers.
   

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   b). Write notes on Bu Na — S and Bu Na — N.

UNIT - II

1. a). Explain the Proximate analysis of coal and give its significance.
   b). Explain Photovoltaic cell with neat diagram.

OR

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

UNIT - III

1. a) Explain the mechanism of electrochemical theory of corrosion with neat diagram.
   b). Describe briefly abt cathodic Protection.

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OR

1. a). Explain Hydrogen — Oxygen fuel cell with neat cell diagram
   b). Discuss on various constituents of Paint.

UNIT - IV

1. a). What is hardness? How it is determined by EDTA method? Explain.
   

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   b). Describe with equations how water can be softened using Lime & Soda Process

OR

1. a) Discuss various sterilizing methods used in municipal water treatment.
   b). Illustrate the reverse osmosis Process with a neat diagram.

UNIT - V

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1. a) Discuss chemistry involved in setting and hardening of cement?
   b). What are refractories? Discuss the classification of refractories.

OR

1. a). Write the engineering applications of Liquid Crystals.
   b). Explain the stoichiometric defects in crystals.

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