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Posted Date: 17 Jun 2016      Posted By:: Krishna Teja Yeluripati    Member Level: Gold  Points: 3 (Rs. 3)

2013 Acharya Nagarjuna University Bapatla Engineering College - I/IV B.Tech - Semester 2 - Engineering Chemistry II - Question Paper - July 2013 Question paper

Course:   University/board: Acharya Nagarjuna University

Do you want the previous question papers of Bapatla Engineering College - B.Tech - Engineering Chemistry II? If you do, you are in luck. This is the original paper conducted to first year second semester students of bapatla engineering college in July 2013. Feel free to save a copy of this paper and use it for your upcoming exams.

I/IV B.Tech Degree Examinations, July 2013

First Year

Second Semester

Engineering Chemistry II

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) Differentiate triple point and critical point of water system.
b) What are the units of molar absorption coefficient?
c) What is ion selective electrode? Give one example.
d)'The noble metals like gold and platinum do not undergo corrosion' Explain.
e) What is meant by straight run gasoline?
f) What are the units of cell constant of a conductivity cell?
g) What is eutectic point?
h) State the range in which carbonyl group gives absorption peak in IR spectrum.
i) Name the source used for production of infrared radiation in spectrophotometer.
j) What are the limitations of glass electrode?
k) What is reagent generally used for the absorption of oxygen?
l) What is anodic metallic coating? Give one example.

UNIT - I [1 x 12 = 12M]

2. a) Discuss the significance of electro chemical series.
2. b) Explain origin of electrode potential. Derive Nernst's equation. (OR)
3. a) What are irreversible cells? Explain them with a suitable example.
3. b) Discuss potentiometric determination of Fe2+ present in a solution using standard potassium dichromate.

UNIT - II [1 x 12 = 12M]

4. a) Write any four applications of green chemistry in detail.
4. b) Explain sacrificial anodic and impressed current methods with diagrams. (OR)
5. What are the constituents of paints and discuss their functions in detail.

UNIT - III [1 x 12 = 12M]

6. a) Discuss the application of phase rule to lead-silver system with a neat diagram.
6. b) Write short notes on octane number and cetane number. (OR)
7. a) What is phase rule? Explain the terms involved in it suitable example.
7. b) Describe the fixed bed catalytic cracking process.

UNIT - IV [1 x 12 = 12M]

8. a) A solution of thickness 3 cm transmits 30% of incident light. Calculate the concentration of the solution. Give that molar absorption coefficient is 4000 dm3mol-1cm-1.
8. b) Write notes on the principles of UV spectroscopy. (OR)
9. a) What is flame photometry? Discuss the estimation of sodium using flame photometry.
9. b) Write briefly the principle involved in atomic absorption spectroscopy.

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