iare.ac.in B.Tech Chemistry Semester II Question Paper : Institute Of Aeronautical Engineering
Name of the Organisation : Institute Of Aeronautical Engineering
Exam : B.Tech Semester Examinations
Subject : Chemistry
Semester : 2
Document Type : Previous Question Paper
Website : https://www.iare.ac.in
B.Tech Semester II Chemistry Question Papers
Institute Of Aeronautical Engineering (IARE) B.Tech Chemistry Previous Question Paper Semester II for the year 2021.
Related / Similar Question Paper : B.Tech Electrical Circuits Semester II Question Paper
B.Tech Semester II Chemistry Questions
MODULE – I
1. (a) What product forms from the lead components of a lead storage battery? Explain construction with chemical reactions? Write its limitations, advantages and applications. [7M]
(b) The standard reduction potentials of Zn+2/ Zn and Cu+2/ Cu are -0.76V and +0.34 V respectively. What is the e.m.f of the cell?
Zn(s)/Zn+2 (0.05M) //Cu+2(0.005M)|Cu(s). [7M]
MODULE – II
2. (a) Discuss ion exchange process of water softening with neat diagram. Give the chemical reactions where ever necessary? [7M]
(b) Two samples of canal water are collected at a distance of 1.5 kms. 100 ml of the water sample collected at point one requires 24 ml of EDTA solution on titration. 100 ml of the water sample collected at point 2 required 20 ml of EDTA solution on titration. 100 ml of SHW (0.28 gms of CaCO3 per liter) requires 22 ml of EDTA solution on titration. Discuss the result and conclusion. [7M]
MODULE – III
3. (a) Explain the compounding of plastics and summarize its significance with suitable examples. [7M]
(b) Discuss the preparation, properties of polymers used in fabricating switches and non lubricating bearings. [7M]
4. (a) Explain why natural rubber needs vulcanization and summarize its significance. [7M]
(b) What is a lubricant? Discuss thick film, thin film, and extreme pressure lubrication mechanisms. [7M]
MODULE – IV
5. (a) Discuss the significance of proximate analysis and ultimate analysis in detail. [7M]
(b) What is green chemistry? Explain the following methods for green synthesis: i) Microwave method. ii) Ultrasound method [7M]
6. (a) Explain about composition, properties and applications of compressed natural gas. [7M]
(b) Calculate the gross and net calorific values of a coal sample having the following composition
Carbon=80%,Hydrogen=7%,Oxygen=3%,Sulphur=3.5%, Nitrogen=2% and Ash=5%. [7M]
MODULE – V
7. (a) What are water pollutants? Discuss various methods to control water pollution. [7M]
(b) Describe briefly droughts and floods with respect to their occurrence and impacts. [7M]
8. (a) What are primary and secondary air pollutants? Enumerate various methods to control air pollution. [7M]
(b) Describe various non-renewable and renewable sources of energy available for use in industrialized countries? What are the future prospects for increasing the use of renewable sources? [7M]
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