K L University 2007 B.E Industrial Production & Engineering industrial chemistry - Question Paper

all units carry equal marks

unit 1

1) a) define the lime soda process for softening of hard water with relevant chemical equations. 8(m)

b) compute the temporary and total hardness of water containing 16.8mg/l of Mg(HCO3)2 , 19 MgCl2, 24mg/L of MgSO4 and 22.2 mg/L of CaCl2 ( Atomic weights of Ca=40, Mg0= 24, O=16, Cl=35.5, S=32, and H=1)

(or)

2) a) define in detail the ion-exchange process for deionization of water
b) define different steps involved in the determination of hardness of water by EDT method

Unit 2

3) a) elaborate silicones? provide preparation of Silicones?
b) write co-ordination polymerization mechanism

(or)

4) a) Bring out the differneces ranging from thermoplastics and thermosetting plastics with suitable examples?
b) discuss the 3 important steps involved in the free radical mechanism of additional polymerization?

(or)

5) a) What is the cell of a emf of a cell whose standard reduction potentials are +0.34V and -0.76V respectively for Cu and Zn electrodes
b) Write the applications of electrochemical series?
c) what is electrode potential and how it is measured?

(or)

6) a) provide the construction of glass electrode. elaborate its advantages and limitations?
b) explain how calomel and glass electrodes can be used for the determination of pH of a provided solution?

Unit 4

7) a) discuss the charging and discharging reactions taking place in Lead- acid battery.
b) How elements and metals are purified?
c) define Zinc - Carbon battery?

(or)

8) a) describe battery and discuss how they are classified?
b) What is meant by cycle life of a battery?
c) provide preparation properties and uses of polythiophene?

Unit 5

9) a) explain different theories involved in explaining the phenomenon of corrosion?
b) elaborate the factors affecting the corrosion?

(or)

10) a) explain how corrosion of metals can be controlled by 1) Inhibitors
b) discuss Concentration cell corrosion?

Earning:   Approval pending.