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Applied Chemistry 1 CBCGS 2017-2018 BE Civil Engineering Semester 1 (FE First Year) Question Paper Solution

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Applied Chemistry 1 [CBCGS]
Marks: 60 University of Mumbai
BE Civil Engineering
BE Computer Engineering
BE Mechanical Engineering
BE Biotechnology
BE Marine Engineering
BE Printing and Packaging Technology
BE Production Engineering
BE IT (Information Technology)
BE Electrical Engineering
BE Electronics and Telecommunication Engineering
BE Instrumentation Engineering
BE Electronics Engineering
BE Chemical Engineering
BE Construction Engineering
BE Biomedical Engineering
BE Automobile Engineering

Academic Year: 2017-2018
Date: June 2018
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1) Question no .1 is compulsory

2) Attempt any three questions from the Q . 2  to Q . 6


[15]1
[3]1.A

Discuss the drawback of natural rubber.

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Chapter: [2] Polymers
[3]1.B

Discuss the treatment of water using bleaching powder

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Chapter: [1] Water
[3]1.C

What are the limitations of Phase rule?

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Chapter: [5] Phase Rule
[3]1.D

Discuss fullerenes. Give its applications. 

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Chapter: [6.02] Nanomaterials
[3]1.E

Write a note on Greases. 

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Chapter: [4] Lubricants
[3]1.F

A 1Oml of sample of water was refluxed with 20ml potassium dichromate solution and after refluxing the excess unreacted dichromate required 26.2ml of 0. 1M FAS solution. A blank 1Oml of distilled water on refluxing with 20ml of dichromate solution required 36ml of 0. 1M FAS solution. Calculate the COD of waste water . 

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Chapter: [1] Water
[3]1.G

Discuss the role of polymer in medicine and surgery.

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Chapter:
[15]2
[6]2.A

Calculate the amount of lime (85% pure) and soda (95% pure) required to soften one million litre of water which contains CaCO3 = 12. 5ppml MgCO3 = 8.4ppml
CaCl2 = 22.2ppml ,  MgCl2 = 9.5ppml C02 = 33ppml HCI = Z3ppml  organic matter= 16.Bppm 

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Chapter: [1] Water
[5]2.B
[3]2.B.i

Give the preparations, properties and uses of Kevlar. 

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Chapter: [2] Polymers
[2]2.B.ii

Define Cloud point and Pour point of a lubricant.

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Chapter: [4] Lubricants
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[4]2.C

Write a note on decay of concrete. 

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Chapter: [6.01] Cement
[15]3
[6]3.A

Define Moulding. List the different techniques of moulding. Explain injection moulding with the help of neat diagram.

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Chapter: [2] Polymers
[5]3.B
[3]3.B.i

Explain the term 'phase' with appropriate examples.

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Chapter: [5] Phase Rule
[2]3.B.ii

Discuss the role of gypsum during the manufacturing of Ponland cement.

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Chapter: [6.01] Cement
[4]3.C

Calculate the total hardness in ppm in given water sample.
: 50ml of standard hard water , containing 1mg pure CaCO3 per ml consumed 20ml EDTA solution.
: 50ml of water sample consumed 30ml EDTA solution using EBT indicator.

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Chapter: [1] Water
[15]4
[6]4.A

Explain the zeolite method for softening of water giving suitable diagram and reactions. What are the limitations of this method. 

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Chapter: [1] Water
[5]4.B
[3]4.B.i

6gms of oil was saponified with 50ml of 0.5N alcoholic KOH solution. After refluxing for 2 hours the mixture was titrated with 25ml O.SN HCL Rnd the sponification value of Oil .

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Chapter: [4] Lubricants
[2]4.B.ii

Distinguish between the wet and dry process for manufacturing of Portland cement .

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Chapter: [6.01] Cement
[4]4.C

Discuss the following additives in compounding of plastics

(a) Fillers (b) Plasticizers.

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Chapter: [2] Polymers
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[15]5
[6]5.A | Write note on (any two):-
[3]5.A.i

Giass transition temperature 

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Chapter: [2] Polymers
[3]5.A.ii

BUNA-S

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Chapter: [2] Polymers
[3]5.A.iii

Vulcanisation

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Chapter: [2] Polymers
[5]5.B
[3]5.B.i

Distinguish between BOD and COD. 

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Chapter: [1] Water
[2]5.B.ii

Define Oiliness. What is its significance {

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Chapter: [4] Lubricants
[4]5.C

Discuss the application of Phase rule to the one component system based on: Diagram ,  triple point

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Chapter: [5] Phase Rule
[15]6
[6]6.A

Define lubricants and lubrication. Mention the various mechanisms involved in lubrication of machine. Discuss boundary lubrication.

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Chapter: [4] Lubricants
[5]6.B
[3]6.B.i

What is reduced or condensed phase rule.

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Chapter: [5] Phase Rule
[2]6.B.ii

Explain reverse osmosis

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Chapter: [1] Water
[4]6.C

What are carbon nanotubes. what are its types. Discuss the laser method for its production. 

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Chapter: [6.02] Nanomaterials

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