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2014 Acharya Nagarjuna University Engineering Chemistry - Question Paper - February 2014 - First Year - First Semester - B.Tech - Bapatla Engineering College Question paper



Course:   University/board: Acharya Nagarjuna University

This is the question paper on Engineering Chemistry conducted to first year first semester students of bapatla engineering college in February 2014. You are advised to download this paper as it may help you in the preparation for your upcoming exams.



I/IV B.Tech Degree Examinations, February 2014

First Year

First Semester

Engineering Chemistry



Time : 3 hours

Maximum Marks : 60



Answer question No.1 Compulsory

Answer ONE question from each Unit


1. Answer the following [12 x 1 = 12M]
a) Define hardness of water.
b) Write the structure of EDTA.
c) What is meant by disinfection?
d) Boiler feed water means
e) Define polymerization.
f) Write the structure of Nylon 6, 6.
g) What is meant by vulcanization?
h) Write the optical properties of micelles.
i) Write the working of Ni- Cd battery.
j) Explain the acid correction in bomb calorimeter.
k) Explain the use of CNT.
l) Explain Flash and Fire points.


UNIT - I [1 x 12 = 12M]

2. a) Explain desalination of brackish water by electro dialysis.
2. b) Explain the hardness of water by EDTA method. (OR)
3. a) Explain internal conditioning of water by giving suitable examples and equations.
3. b) Write briefly about priming and foaming.

UNIT - II [1 x 12 = 12M]

4. a) Write the differences between thermoplastics and thermo setting resins.
4. b) Explain free radical polymerization mechanism. (OR)
5. a) Explain Freundlich and Langmuir adsorption isotherms.
5. b) Write the applications of colloids in industry.

UNIT - III [1 x 12 = 12M]

6. a) Explain proximate and ultimate analysis of coal.
6. b) Write briefly about lead acid battery. (OR)
7. a) Write in detail about the determination of calorific value by bomb calorimeter.
7. b) Explain H2 - O2 fuel cell.

UNIT - IV [1 x 12 = 12M]

8. a) Write short notes on natural and synthetic abrasives.
8. b) Write briefly about types of composites.
8. c) Explain the mechanism of lubrication. (OR)
9. a) Write about preparation of few nano materials.
9. b) Explain viscosity index of a lubricant.
9. c) Write short notes on refractories and its properties.





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