[Year]
UNIT I
What are ion exchange resins? Describe the demineralization of water by ion-exchange method
Mention the disadvantages of using hard water for any two industries.
What is the principle of EDTA method? Explain the estimation of hardness of water by Complexometric
method
4. Write short notes on break-point chlorination and dissolved oxygen, Hardness of water, sedimentation
and coagulation.
5. Explain scale formation and sludge formation in boilers. What are their disadvantages? How are they
removed?
6. What are the specifications of potable water? Discuss the various steps involved in
the treatment of water for domestic purpose.
7. What are the chemical reactions involved in the conditioning water by lime soda
process? Explain the hot lime soda process with a neat diagram.
8. 0.05g of calcium carbonate was dissolved in dilute HCl and diluted to 1000ml. 50 ml of this solution
requires 48ml of EDTA solution for titration. 50 ml of hard water samples require 15 ml of EDTA solution
for titration. 50 ml of same water sample on boiling, filtering, require 10ml EDTA solution. Calculate the
different kinds of hardness in ppm.
9. What are ion exchange resins? Discuss their applications in water softening.
10. Briefly describe about boilers troubles.
UNIT II
1. State and explain Kohlrausch law. Discuss the applications of Kohlaursch law.
2. Define and explain Specific conductance, equivalent conductance and molar conductance.
3. Show that the degree of dissociation of a weak acid is reciprocal of the square root its concentration.
4. Discuss in detail about various Conductometric titrations.
5. What is a galvanic cell? Explain its construction, working and applications
6. Define electrode potential. Derive an expression for the determination of electrode potential.
7. What is electrochemical series? Derive an expression for Nernst Equation.
8. What are ion selective electrodes? Explain the construction working and applications of (a) NHE (b)
calomel electrode (c) glass membrane electrode (d) Ag-AgCl electrode.
9. (a) What is a battery? Explain the classification of batteries
(b) Explain the construction and working of Leclanche cell and Ni-Cd battery
(c) Expalin in detail about concentration cells
10. What is a fuel cell? Explain the construction and working of Hydrogen-Oxygen fuel cell and Methanol –
Oxygen fuel cell.
UNIT III
1. Give suitable reasons.
a. Zn gets corroded vigorously when connected to Cu than with Te.
b. Copper equipment should not possessive a small steel bolt.
c. Small anodic area results in intense local corrosion.
2. What is electro chemical corrosion how does it occur? Describe the mechanism.
3. What are corrosion inhibitors? Discuss anodic and cathodic inhibitor with suitable example.
4. Distinguish between galvanizing and tinning.
5. Explain in brief various types of corrosion with suitable example.
6. Brief the cathodic protection of preventing corrosion.
d. Sacrificial anodic protection
e. Impressed current cathodic protection.
7. Distinguish between wet corrosion and dry corrosion.
UNIT IV
1. Explain how polymers are classified on the basis method of polymerization. Give one example for each
case.
2. What is the repeating unit of Natural rubber and Teflon
3. Write four moulding constituents of plastics and their function with examples.
4. Explain the injection moulding process with a neat diagram? Mention its advantages.
5. Why Bakelite can’t be remoulded and write its repeating unit
6. Describe condensation polymerization with example.
1.
2.
3.
Engineering Chemistry
Page 1
[Year]
UNIT V
Briefly explain the important characteristics of a good fuel.
What is proximate analysis of coal? What is the significance of the analyses
Write a brief account of ultimate analysis of coal. What is its significance
Define calorific value of a solid fuel. How it is determined experimentally using bomb calorimeter.
What is pulverization of coal? What are the advantages and disadvantages of pulverized coal?
What is cracking of oil? How is this useful in petroleum industry?
Explain knocking in IC engines using petrol as fuel.
Define Cetane Number of a fuel.
Explain the term octane number of the fuel
What is cracking of an oil and how this process is useful in petroleum industry.
Explain briefly the fractional distillation of petroleum.
Write notes on anti-knocking agents that are used with petrol.
What is cracking of oil. Explain the moving bed catalytic cracking method of oil.
What is LPG? What are the advantages of LPG over other fuel gases.
UNIT VI
Part I
1. Explain in brief carbon nano tubes. What are the various types of carbon nano tubes? Discuss the
synthesis and properties of carbon nano tubes?
2. What are fullerenes? Explain the different types of fullerenes?
3. Write short note on following
a. Nano wires b. Quantum dots
4. Properties and engineering applications of carbon nano tubes.
Part II
5. Give in brief the classification of liquid crystals along with their characteristics and give few applications
of liquid crystals.
Part III
6. Write short notes on Bulletproof plastics
7. Explain in brief the preparation and structure of Kevlar and Nomex. Discuss their engineering
applications
8. Write in brief about conducting and biodegradable polymers.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Part IV
9. Explain how solar energy is converted to electricity by different methods.
10. What do you mean by Green –House effect? and how the green house effect is useful to mankind.
11. Discuss the need and the principles involved in green chemistry?
12. Explain in brief various methods employed for green synthesis?
13. Give the engineering applications of Green chemistry.
Part V
14. Explain in brief the manufacture of Portland cement by rotary kiln with a neat flow diagram?
15. Discuss the constituents and their functions of cement. Mention the reactions that take place
during
the manufacture of cement.
16. Give a detailed account of setting and hardening of cement.
Problems:
1.
2.
3.
4.
5.
Lime soda method - Model related to purity and direct problem.
Problem related to EDTA titration method.
Ultimate and proximate analysis of coal.
Calculation of electrode potential using Nernst equation.
Calorific value: Dulong method, Bomb calorimeter method with and without corrections.
Engineering Chemistry
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