Download SGBAU B-Tech 1st Sem Applied Inorganic Chemistry Question Paper

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B.Tech. First Semester ((FPOPC) Polymer (Plastic)) (CGS)

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11700 : Applied Inorganic Chemistry : 1 SCT 1

AW - 2929

Max. Marks : 80

Pages : 2

Time : Three Hours

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Notes:

1. Answer three questions from section A and three questions from section B.
2. Diagrams and chemical equations should be given wherever necessary.
3. Discuss the reaction, mechanism wherever necessary.
4. Use of pen Blue/Black ink/refill only for writing the answer book.

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SECTION - A

1. a) Derive Schrodinger wave equation?
   b) State and explain de Broglie's Principle. 4
   c) Write the Postulates of Bohr's theory. 3

OR

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2. a) What is ionisation potential? What are the factors affecting ionisation potential. 6
   b) State and explain Aufbau Principle. 4
   c) Explain electron affinity? How it differs from electronegativity. 3
3. a) Define lattice energy? How it is calculated by Born-Haber cycle.
   b) Differentiate covalent and ionic bond. 4
   

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   c) Explain the following 4
   i) Inert pair effect ii) Metallic bond

OR

4. a) What is meant by hybridisation? Explain SP³ hybridisation with suitable examples. 4
   b) What is hydrogen bond? Classify with suitable example. 5
   

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   c) Explain the following 4
   i) Coordinate bond ii) Odd electron bond
5. a) What is meant by hardness? Explain the ion exchange process.
   b) Calculate temporary and permanent hardness of water sample containing
   Mg(HCO₃)₂ =73mg/l
   

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   Ca(HCO₃)₂ =16.3ppm
   MgCl₂ =9.5ppm
   CaSO₄ =13.6mg/l
   c) Write the disadvantages of hard water in industries. 4

OR

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6. a) What is softening of water? 6
   

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   b) Write the effect of water on rock and minerals. 4
   c) Differentiate scale and sludge formation. 4

SECTION -B

7. a) What is Ore? Describe froth flotation process. 5
   b) What are compositions of bronze? Discuss their properties and applications. 4
   

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   c) Why alloys required? Write any four points. 4

OR

8. a) Discuss magnetic separation and Gravity separation method. 6
   b) Explain with reaction 4
   i) Calcination ii) Roasting
   

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   c) What is Brass? Give its properties and uses. 3
9. a) What are the factors affecting on corrosion. 5
   b) Explain the following 4
   i) Galvanic corrosion ii) Waterline corrosion
   c) What is cathodic corrosion? Discuss impressed current cathodic protection. 4

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OR

10. a) Explain the following 9
    i) Pitting corrosion
    ii) Intergranular corrosion
    iii) Stress corrosion
    

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    b) What is wet corrosion? Discuss the mechanism 4
11. a) Discuss the manufacturing process of Portland cement by wet method. 6
    b) What is meant by refractory? Classify. 4
    c) Give the composition and uses of 4
    i) Soda glass ii) Borosilicate glass

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OR

12. a) Discuss the manufacture process of glass. 6
    b) Why cement called Portland cement? Explain the role of Gypsum in cement. 4
    c) Write any two properties and uses of refractory. 4

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