Calicut University 2011-2nd Sem B.Tech Combined first and of engineering chemistry - Question Paper

COMBINED 1st AND 2nd BTECH examination
ENGINEERING CHEMISTRY

(1-5 every carry 2mark)
1. Differentiate n-type and p-type
2. A sample of water contain subsequent impurities Mg(Hco3)2=75mg/L,CaCl2=278mg/L,mgso4=142mg/L
cal permenent hard
3. name the monomers of bakelite
4. What is hydrogen electrode
5. What is direct corrosion

(6-11 ,each carries five mark)
6. Classification and application of liquid crystal
7. Lime soda process
8. Application of polymer in electrical and electronics
9. Derive emf in concentration cells
10. How ph measure glass electrode
11. explain differential aeration corrosion with an eg

(12-15,each caries 10 mark)
explane
12. Ultrapure silicon production
13. How Hardness of water det by edta
14. Etreme pressure lubrication
15. Galvanic series and galva corrosion

Earning:   Approval pending.