Download DBATU (Dr. Babasaheb Ambedkar Technological University) B.Tech First Year 2017 Dec Engineering Chemistry 4 Question Paper
DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY
LONERE ? RAIGAD ? 402 103
Semester Examination ? December ? 2017
Branch: B. Tech. Semester: I
Subject with Subject Code: Engineering Chemistry Marks: 60
(CI-llVI103)
Date: 15/ 12/2017 Time: 3 Hrs.
Instructions to the Students:
1. Each question carries 12 marks.
2. Attempt any F IVE questions of the following.
3. Illustrate your answers with neat sketches, diagram etc., wherever necessary.
4. If some part or parameter is noticed to be missing, you may appropriately assume it and should
mention it clearly.
___________________________________________________________ (32;;
Q.1. Attempt Any TWO questions of the following:
a) Explain Ion Exchange process of softening of water with its advantages and disadvantages. (06)
b) How does the Hardness of water determined by EDTA complexometric method? (06)
(2) Write note on Chemical Oxygen Demand (COD). (06)
Q. 2. a) State Phase rule equation. Explain the term Component of phase rule with examples. (06)
b) What is meant by Eutectic point? Explain Silver?lead two component alloy system
with phase diagram. (06)
Q.3. a) Describe the process of electrolytic refining of crude copper metal. (06)
b) Explain the Gravity separation and Magnetic separation method for physical concentration (06)
of metals.
Q.4. Attempt Any TWO questions of the following:
a) Give the classification of fuels and explain characteristics of good fuel. (06)
b) Discuss the Proximate analysis of coal with its significance. (06)
c) Explain Thick film and Thin film lubrication with suitable examples. (06)
Q5. a) How does Ethyl alcohol manufactured from molasses by F ermentation process? (06)
b) Explain synthesis, physical?chemical properties and uses of Pyridine. (06)
Q.6. Attempt Any TWO questions of the following:
3) Define the terms Ohms Law, Specific conductance, Equivalent conductance, Molecular
Conductance and Cell constant with their units. (06)
b) Explain in detail Debye?Huckel theory of Strong electrolyte. (06)
c) Write note on: Glass Electrode. (06)
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This post was last modified on 17 May 2020