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DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY,LONERE
End Semester Examination – Summer 2019
Course: B. Tech
Sem: I & II
Subject: Engineering Chemistry
Subject code:CHM1202
Duration: 3 Hr.
Marks: 60
Date: 16/05/2019
Instructions to the Students:
1
. All question are compulsory.
2
3
4
. Each question carry 12 marks.
. Illustrate your answers with neat sketches, diagrams etc., wherever necessary.
. If some part or parameter is noticed to be missing, you may appropriately assume it.
(Level / Marks
CO)
Q.1 Solve Any Two of the following.
A) Explain Zeolite process with its advantages and disadvantages.
B) Explain the determination of Dissolve Oxygen (DO) by Winkler’s
Method.
01
06
0
0
1
1
0
0
6
6
C) Write a note on Ion exchange resins.
Q.2 Solve Any Two of the following.
A) What is Phase Rule? Explain the term Phase and Degree of Freedom
with examples.
B) Explain in detail Phase Diagram of Sulphur system.
C) Describe Phase Diagram of two component Ag-Pb alloy system.
02
06
0
2
06
6
02
0
Q.3 Solve Any One of the following.
A) i) Write various types of ore.
ii) Explain the Froth Flotation and Magnetic separation method of
concentration of ore.
B) i) Explain the reduction of ore by smelting process.
ii) Explain the electrolytic refining of metal.
03
06
06
0
3
0
0
6
6
Q.4 Solve Any Two of the following.
A) What are Fuels? How they are classified? State characteristics of a
good fuel.
B) Describe in brief types of lubricants.
C) Explain how the percentage of Nitrogen and Sulphur in coal can be
estimated.
04
06
0
0
4
4
06
0
6
Q.5 Solve Any One of the following.
A) i) Explain the method of conductance measurement and discuss the
term cell constant.
05
06
ii) Discuss Asymmetric effect suggested by Debye-Huckel theory of
strong electrolytes.
0
6
0
5
06
6
B) i) Write a note on glass electrode.
ii) Explain Ostwald’s Theory of acid base indicators.
END
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