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(Please write your Roll No. immediately) |
Roll No. .................................. |
First Semester [B.Tech] - December 2003
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Paper Code : ETCH – 105 Subject : Applied Chemistry-I |
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Time : 3 Hours |
Maximum Marks : 75 |
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Note : Attempt any 5 questions in all. |
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Q1 |
( a ) |
Define carbonate and non-carbonate hardness of water. List the various disadvantages of hard water for domestic use. |
3 |
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( b ) |
Discuss the ION EXCHANGE PROCESS for water softening. |
8 |
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( c ) |
What do you understand with the priming and foaming problem in boilers? |
4 |
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Q2 |
( a ) |
Describe the carbonate and phosphate conditioning of water to overcome the boiler feed problem. |
7 |
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( b ) |
Calculate the amount of lime and soda required 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 |
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Q3 |
( a ) |
Define gross and net calorific values of fuels. |
3 |
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( b ) |
Discuss the method of calorific value determination by BOMB's calorimeter. |
8 |
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( c ) |
Calculate the weight and volume of air required for the combustion of 3 Kg of carbon. |
4 |
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Q4 |
( a ) |
Describe the fractional distillation of petroleum. |
5 |
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( b ) |
What do you understand with the knocking of a fuel? Report ways to improve the anti knocking characteristics of a fuel. |
5 |
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( c ) |
Write about the production and applications of WATER GAS. |
5 |
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Q5 |
( a ) |
Explain the colors in the compound of the following: (i) Mn2+ (ii) Cr3+ (iii) Zn2+ |
3 |
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( b ) |
Describe the CRYSTAL FIELD THEORY for the octahedral complexes of transition metals. |
8 |
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( c ) |
Report the magnetic behavior of any two of the complex ions: (i) [Cu(NH3)4]2+ (ii) [Fe(CN)6]3- (iii) [Ni(H2O)6]2+ |
4 |
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Q6 |
( a ) |
Define the term polymer with suitable examples. |
2 |
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( b ) |
Differentiate ORGANIC and INORGANIC polymers. |
5 |
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( c ) |
What are phosphazenes? Give a method of preparation, structure and properties of a phosphazene. |
8 |
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Q7 |
( a ) |
Define Ideal and Non-Ideal solutions. |
4 |
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( b ) |
Write about the distillation of a binary solution. |
7 |
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( c ) |
What is Nernst Distribution Law? Give its applications. |
4 |
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Q8 |
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Write short notes on ANY FIVE of the following: |
5x3 |
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(a) |
Lime Soda Process |
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(b) |
Special behavior of strong electrolytes |
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(c) |
Nuclear Fission |
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(d) |
Henry's Law |
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(e) |
Metallurgical Coke |
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(f) |
Polysiloxanes |
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