Download DBATU B-Tech 1st Year 2018 Dec Engineering Chemistry 3 Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B.Tech First Year 2018 Dec Engineering Chemistry 3 Question Paper

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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
End Semester Examination (Supplementary) ? Dec. 2018
Course: B. Tech (All Branches) Semester: I/H
Subject: Engineering Chemistly - Sub Code: CHM103/ CHM203
Date: 01/12/2018 Marks: 60 Duration: 3 Hr.
Instructions t0 the Students
1. Each question carries 12 marks.
2. Attempl any ?ve questions of the following.
3. Il/usn?ate your answers with neat sketches, diagram eta, wherever necessm?y.
4. If some part or parameter is noticed to be missing, you may appropriately assume it and should
mention it clearly
Q.1. Attempt Any Two questions of the following.
a) Explain Zeolite process of softening of water with its advantages and disadvantages.
b) How does the Hardness of water determined by EDTA Complexometn'c method?
0) Write note on: Dissolved Oxygen.
Q. 2. a) Explain the term Components and Degrees of Freedom involved in it with examples.
b) Explain one component Sulphur system with phase diagram.
Q.3. a) Explain any two physical methods of concentrations of ore.
b) Describe the process of Electrolytic Re?ning of crude copper metal.
Q.4. Attempt Any Two questions of the following.
a) What are the types of fuels and characteristics of good fuel?
b) Explain in detail the Proximate Analysis of Coal.
0) Describe the Thick ?lm and Extreme pressure lubrication with examples?
Q5. 3) How does Ethyl alcohol manufactured from molasses by F ennentation process?
b) Explain synthesis, physicaI?chemical properties and uses of Pyridine.
Q.6. Attempt Any Two questions of the following.
a) Explain Quinonoid theo1y ofAcid Base Indicator.
b) Write note on: Glass Electrode.
c) What is Cell Constant and how it can be determined?
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