Jawaharlal Nehru Technological University Anantapur 2012 B.Tech Electronics and Communications Engineering Sree vidyanikethan Engineering college 1st Engineering Chemistry - Question Paper

SREE VIDYANIKETHAN ENGINEERING COLLEGE
Max Marks:70
ans any 5 ques.
All ques. carry equal marks

1. explain in detail different properties of lubricants?

2.(a) elaborate conducting polymers? How are they classified? provide the important applications of conducting polymers?
(b) Write a note on preparation, properties and applications of the following:
(1)Teflon (2)Buna-N

3.(a) elaborate reference electrodes? discuss the working of calamel electrodes?
(b) elaborate secondary cells? define the working of solid state lithium battery?

4.(a) discuss the corrosion of metals due to concentration cell?
(b) define how electro-less plating of nickel is carried out? Mention the chemical equations involved?

5.(a) Distinguish ranging from lyophilic colloids and lyophobic colloids?
(b) discuss the applications of adsorption?

6.(a) discuss the role of dimensionality in determining the properties of nano materials? provide examples?
(b) define sol-gel process for preparation of nano materials?

7. define the principle and applications of Atomic Absorption Spectroscopy?

8.(a) What is desalination? provide 1 method used for desalination of water?
(b) discuss water softening y zeolite process?

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Earning:   Approval pending.