Download DBATU B-Tech 1st Year 2019 Winter Engineering Chemistry Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B.Tech First Year 2019 Winter Engineering Chemistry Question Paper

DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY,LONERE
Winter End Semester Examination ? Dec 2019
Course: F.Y. B. Tech
Subject: Engineering Chemistry (CHM1202)
Date: 16/12/2019
Sem: I
Marks: 60
Duration: 3 Hr.
Instructions to the Student:
1
All questions are compulsory.
2. Use of non-programmable scienti?c calculators is allowed.
3. Each question carries 12 marks.
4. Illustrate your answers with neat sketches, Diagram etc. Whenever necessary.
(Level / Marks
c0)
Q.1 Solve Any Two of the following.
A) Explain in detail Hot Lime-soda process with its advantages and 01 06
disadvantages.
B) Explain the determination of Dissolved Oxygen by Winkler?s 01 06
Method.
C) De?ne Hard and Soft water. How does the hardness of water 01 06
determined by EDTA complexometric method?
Q.2 Solve Any Two of the following.
A) What is Phase Rule? Explain the term Component and Degree?s 0f 02 06
Freedom with suitable examples.
B) Explain in detail Phase Diagram of Water system. 02 06
C) Describe Phase Diagram of two component Ag-Pb alloy system. 02 06
Q3 Solve Any One of the following.
A) 1) Explain electrolytic re?ning of metal. 03 06
ii) Discuss the process of Calcination and Roasting of ore. 03 06
B) Explain Froth?Flotation, Magnetic separation and Gravity
separation methods of concentration of ore. 03 12
Q4 Solve Any Two of the following.
A) Discuss the Physical properties of Lubricant. 04 06
B) Describe the process of determination of % of Carbon, Hydrogen and 04 06
Sulphur in the coal.
C) Explain in detail the process of Re?ning of Petroleum. 04 06
Q5 Solve Any One 0fthe following.
A) 1) Write a note on Conductometric titrations. 05 06
ii)Write a note on glass electrode. 05 06
B) Explain in detail Qstwald?s and Quinonoid Theory of acid base 05 12
indicators.
Paper End
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