University : Teerthanker Mahaveer University
College : Teerthanker Mahaveer College of Engineering
Degree : B.Tech
Subject : EAS103 Chemistry
Semester : I
Document Type : Question Paper
Website : tmu.ac.in
Download Previous/ Old Question Papers :https://www.pdfquestion.in/uploads/tmu.ac.in/5764-oldquestionbtech201011.pdf
Chemistry :
B.Tech I SEMESTER EXAMINATION 2010-11
Course Code : EAS103
Paper ID : 0211103 Chemistry
Related : Teerthanker Mahaveer Medical College & Research Centre EAS102 Physics B.Tech Question Paper : www.pdfquestion.in/5773.html
Time : 3 Hours
Max. Marks: 75
Note : Attempt six questions in all. Q. No. 1 is compulsory.
1. Answer any five of the following (limit your answer in 50 words).
(3×5=15)
a) Explain why O-nitrophenol is more volatile than p-nitrophenol-
b) What is the stabilization energy- And how it differs from bond energy-
c) What do you mean by Tacticity- How Polymers are classified on the basis of Tacticity-
d) Explain the conduction property of Graphite. How it is take place-
e) What is the Break Point Chlorination-
f) How the resins are regenerated in an ion exchange process-
g) Define Flash, Fire and Drop Point.
h) What approaches do you think to deal with global warming-
2. Show how the LCAO method related to wave mechanics. Give rise to bonding and anti-bonding orbitals (molecular orbitals), by using the MO theory predict, the bond order and magnetic behavior of following diatomic molecules- (12) 2- 2 O , NO+, CO-, HCl .
3. What is unit cell- How they are classified- Assume, two molecules of iron are associated per unit cell, calculate its edge length and radius, if the density of iron atom is 7.86kg/m3. (Atomic weight of iron atom = 56) (12)
4. Defines the terms –‘Phase’, ‘Components’ and degrees of freedom and also draw a neat labeled phase diagram of water system and explain the areas and curves in it. What is the significance of the triple point and meta stable curve in this system. (12)
5. What are the electrode concentration cells explain with examples. Calculate EMF of the following cell at 25°C. (12) Zn-Hg(0.05M) | Zn2+ | Zn-Hg(1.50M) (R=8.31JK-1MOL-1, F=96500 Coulomb/mol)
6. How will you calculate the calorific value in bomb calorimeter- (12) A sample of coal containing 75% C, 23% H, 2% ASH when coal is tested in laboratory by bomb calorimeter for measuring its calorific value, the following data were obtained :
Weight of coal burnt = 7.75g
Weight of water in-copper calorimeter = 580gm
Water equivalent in bomb and calorimeter = 2000gm
Rise in temperature of water in calorimeter is = 2.5°C
Acid correction = 40 calori
Cooling correction = 3.5°C
Calculate the gross and net calorific value of the coal in calori/gram. Assuming the latent heat of condensation of steam is 580 cal/gram.
7. Discuss the ion-exchange process for treatment of boiler feed water. How it remove the hardness of water- What are the advantage and limitation of this process- (12)
8. Discuss the various physical properties of liquid lubricants. (12)
B.Tech II (Second) Semester Examination 2014-15 :
Course Code : EAS203
Paper ID : 0962445
Time : 3 Hours
Max. Marks : 70
Max Marks : 75
Note : Attempt six questions in all. Q. No. 1 is compulsory.
1. Answer any five of the following (limit your answer to 50 words). (4×5=20)
a) Define Polymers with examples.
b) What is diatomic hetero -molecules? Give three examples.
c) Define space lattice. Give types of cubic unit cells with examples.
d) What do you understand by energy activation?
e) Discuss in brief Reverse osmosis.
f) Classify the different types of fuels.
g) Classify the Lubricants with examples.
h) What are the constituents of Ceramic materials?
2. Explain Radius ratio rule. How is it used to explain structures of crystals? (10)
3. What is Fullerene? Discuss its structure and give its applications. (10)
4. Explain Phase diagram for Water system. Where is degree of freedom zero? (10)
5. What is the difference between gross and net caloric value? How are they determined by Bomb Calorimeter? (10)
6. Discuss Electronic theory of corrosion. How do you protect metals from corrosions? (10)
7. What are lubricants? Discuss the selection of lubricants for special purpose. (10)
8. What is glass? Classify and give uses of glasses. (10)