Guru Gobind Singh Indraprastha Vishwavidyalaya 2003 B.Tech ETCH – 105 Subject : Applied Chemistry-I - Question Paper

End-Term exam
First Semester [B.Tech] - December 2003

Paper Code : ETCH – 105 Subject : Applied Chemistry-I

Time : three Hours
Maximum Marks : 75

Note : Attempt any five ques. in all.


Q1
( a )
describe carbonate and non-carbonate hardness of water. List the different disadvantages of hard water for domestic use.
3

( b )
explain the ION EXCHANGE PROCESS for water softening.
8

( c )
What do you understand with the priming and foaming issue in boilers?
4



Q2
( a )
define the carbonate and phosphate conditioning of water to overcome the boiler feed issue.
7

( b )
compute the amount of lime and soda needed for the chemical treatment of water containing : Ca2+ = 80 ppm; Mg2+ = 36 ppm; K+ = 39 ppm; HCO3- = 244 ppm; FeSO4.7H2O added as coagulant = 69.5 ppm.
8



Q3
( a )
describe gross and net calorific values of fuels.
3

( b )
explain the method of calorific value determination by BOMB's calorimeter.
8

( c )
compute the weight and quantity of air needed for the combustion of three Kg of carbon.
4



Q4
( a )
define the fractional distillation of petroleum.
5

( b )
What do you understand with the knocking of a fuel? Report ways to improve the anti knocking characteristics of a fuel.
5

( c )
Write about the production and applications of WATER GAS.
5



Q5
( a )
discuss the colors in the compound of the following:

(i) Mn2+ (ii) Cr3+ (iii) Zn2+
3

( b )
define the CRYSTAL FIELD THEORY for the octahedral complexes of transition metals.
8

( c )
Report the magnetic behavior of any 2 of the complex ions:

(i) [Cu(NH3)4]2+ (ii) [Fe(CN)6]3- (iii) [Ni(H2O)6]2+
4



Q6
( a )
describe the term polymer with suitable examples.
2

( b )
Differentiate ORGANIC and INORGANIC polymers.
5

( c )
elaborate phosphazenes? provide a method of preparation, structure and properties of a phosphazene.
8



Q7
( a )
describe Ideal and Non-Ideal solutions.
4

( b )
Write about the distillation of a binary solution.
7

( c )
What is Nernst Distribution Law? provide its applications.
4



Q8


Write short notes on ANY 5 of the following:
5x3

(a)
Lime Soda Process



(b)
Special behavior of strong electrolytes



(c)
Nuclear Fission



(d)
Henry's legal regulations



(e)
Metallurgical Coke



(f)
Polysiloxanes

Earning:   Approval pending.