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Applied Chemistry 1 CBCGS 2016-2017 BE Electronics Engineering Semester 1 (FE First Year) Question Paper Solution

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Applied Chemistry 1
CBCGS
2016-2017 December
Marks: 60

[15]1
[3]1.a

What is the role of polymer in medicine and surgery ?Explain with the help of any three examples?

Chapter: [2] Polymers
Concept: Polymers in Medicine and Surgery
[3]1.b

Distinguish between alkaline and non alkaline hardness?

Chapter: [1] Water
Concept: Hardness of Water
[3]1.c

State the limitations of phase rule?

Chapter: [5] Phase Rule
Concept: Advantages and Limitations of Phase Rule.
[3]1.d

What are carbon nanotubes? Explain different types of carbon  nanotubes?

Chapter: [6.02] Nanomaterials
Concept: Nanomaterials - properties and uses of CNTS
[3]1.e

When would solid lubricants are used?

Chapter: [4] Lubricants
Concept: Lubricants
[3]1.f

6ml of waste water was refluxed with 25ml ofK2Cr2 O7 solution and after refluxing the excess unreacted dichromate required 20ml of 0. 1 N FAS solution. A blank of distilled water on refluxing with 25 ml of K2Cr2O7 solution required 35ml of 0. 1 N FAS solution . Calculate the COD of the waste water sample.

Chapter: [1] Water
Concept: COD- Definition and Significance
[15]2
[6]2.a

Calculate the quantity of the pure lime and soda required for softening of 1,00,000 litres of water containing the following impurities in ppm. The purity of lime is 70% and soda is BS% Ca(HCO3) = 30.2 , Mg(HCO3) = 20.8 ,CaCI2 = 28.1 ,MgCl2 = 8.78, CaSO= 35, MgSO4 = 6.7 .

Chapter: [1] Water
Concept: Softening of water by Hot and Cold lime Soda method and numerical problems
[5]2.b
[3]2.b.1

Distinguish between thermoplastic and thermosetting resins. ?

Chapter: [2] Polymers
Concept: Thermoplastic Plastic
[2]2.b.2

Define flash and fire points.

Chapter: [4] Lubricants
Concept: Definition and significance of - Viscosity
[3]2.c

Witte the CVD method for preparation of carbon nanotubes.

Chapter: [6.02] Nanomaterials
Concept: Nanomaterials - preparation (Laser and CVD) method
[15]3
[6]3.a

What is meant by Fabrication of plastics? Explain injection moulding with the help of neat diagram .

Chapter: [2] Polymers
Concept: Fabrication of Plastic by Injection
[5]3.b
[3]3.b.1

State the condensed phase role.

Chapter: [5] Phase Rule
Concept: Terms involved with examples of phase rule
[2]3.b.2

How is gypsum useful in setting and hardening of cement?

Chapter: [6.01] Cement
Concept: Cement - Setting and Hardening of Portland Cement
[4]3.c

The hardness of 85000 litres of water sample was removed by passing it through a zeolite softener. The zeolite required 2000 litres of NaCl solution containing 190 mg/lit of NaCl for regeneration. calculate the hardness of sample.

Chapter: [1] Water
Concept: Zeolite process and numerical problems
[15]4
[6]4.a

How is activated sludge process carried out for the treatment of waste water? Explain with flow sheet diagram.

Chapter: [1] Water
Concept: Sewage Treatment
[5]4.b
[3]4.b.1

1.4 gm of oil required 1.8 ml of 0.01N KOH for neutralization. Calculate the acid value and mention whether the oil is suitable to be used or not.

Chapter: [4] Lubricants
Concept: Additives in blended Oils
[2]4.b.2

Write the applications of Fullerenes.

Chapter: [6.02] Nanomaterials
Concept: Nanomaterials - Fullerene - properties and uses
[4]4.c

What is the functions of fillers and plastisizers in the compounding of plastic?

Chapter: [2] Polymers
Concept: Compounding of Plastic
[15]5
[6]5.a

Write the preparation, properties and uses of PMMA and Buna-S.

Chapter: [2] Polymers
Concept: Preparation, properties and uses of PMMA
[5]5.b
[3]5.b.1

What are the advantages of ion exchange process?

Chapter: [1] Water
Concept: Ion Exchange Process and Numerical Problems
[2]5.b.2

What is oiliness? What is its importance in lubrication?

Chapter: [4] Lubricants
Concept: Definition and significance of - Viscosity
[4]5.c

What is the application of phase rule to one component water system? Explain with the help of diagram.

Chapter: [5] Phase Rule
Concept: One Component System (Water)
[15]6
[6]6.a

Define lubricants and lubrication. Discuss the hydrodynamic lubrication in detail.

Chapter: [4] Lubricants
Concept: Lubricants - Solid Lubricants S (Graphite and Molybdenum Disulphide )
[5]6.b
[3]6.b.1

Define phase ,component and degree of freedom.

Chapter: [5] Phase Rule
Concept: One Component System (Water)
[2]6.b.2

What are the industrial application of ultrafiltration ?

Chapter: [6.01] Cement
Concept: Cement - Chemical Composition and Constitution of Portland Cement
[4]6.c

What is RCC? Write the advantages of it.

Chapter: [6.01] Cement
Concept: Cement - RCC and Decay

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