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Applied Chemistry 2 CBCGS 2016-2017 BE Civil Engineering Semester 2 (FE First Year) Question Paper Solution

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Applied Chemistry 2 [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: 2016-2017
Date: जून 2017
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1) Question No. 1 is compulsory

2) Attempt any 3 questions from Q. No. 2 to Q. No. 6


[15]1 | Answer any five of following:
[3]1.a

Gold does not get corroded due to oxidation. Why?

Concept: undefined - undefined
Chapter: [6] Corrosion
[3]1.b

Give the composition,propoerties and uses of Duralumin.

Concept: undefined - undefined
Chapter: [7] Alloys
[3]1.c

Define octane number

Concept: undefined - undefined
Chapter: [8] Fuels

Define cetane number.

Concept: undefined - undefined
Chapter: [8] Fuels
[3]1.d

Give classification of composite materials.

Concept: undefined - undefined
Chapter: [9] Composite Materials
[3]1.e

List any Six principles of Green Chemistry.

Concept: undefined - undefined
Chapter: [10] Green Chemistry
[3]1.f

Explain the advantages of galvanizing over tinning.

Concept: undefined - undefined
Chapter: [6] Corrosion
[3]1.g

A coal sample contains C=70%, O=23%, H=5%, N=0.4%, Ash=0.1%. Calculate GCV and NCV of the fuel.

Concept: undefined - undefined
Chapter: [8] Fuels
[15]2
[6]2.a

Explain the following factor affecting the rate of corrosion:
Relative areas of anode and cathode.

Concept: undefined - undefined
Chapter: [6] Corrosion

Explain the following factor affecting the rate of corrosion: 
Purity of Metal

Concept: undefined - undefined
Chapter: [6] Corrosion

Explain the following factor affecting the rate of corrosion: Effect of pH

Concept: undefined - undefined
Chapter: [6] Corrosion
[5]2.b
[3]2.b.i

0.5gm of coal sample was burnt in Bomb Calorimeter experiment produced 0.06gm of BaSO4. Calculate percentage of sulphur.

Concept: undefined - undefined
Chapter: [8] Fuels
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[2]2.b.ii

What is supercritical CO2?Give one application of it.

Concept: undefined - undefined
Chapter: [10] Green Chemistry
[4]2.c

Write a note on sandwich panel type layered composites.

Concept: undefined - undefined
Chapter: [9] Composite Materials
[15]3
[6]3.a

With neat and labeled diagram explain fixed bed catalytic cracking.

Concept: undefined - undefined
Chapter: [8] Fuels
[5]3.b
[3]3.b.i

Write short note on atomization.

Concept: undefined - undefined
Chapter: [7] Alloys
[2]3.b.ii

What is pigment?

Concept: undefined - undefined
Chapter: [6] Corrosion

Give two functions of pigment.

Concept: undefined - undefined
Chapter: [6] Corrosion
[4]3.c

Calculate the percentage atom economy for the following reaction.
CH3NH2+COCL2 →CH3N=C=O+2HCL

Concept: undefined - undefined
Chapter: [10] Green Chemistry
[15]4
[6]4.a

Explain with the help of diagram wet corrosion in neutral medium.

Concept: undefined - undefined
Chapter: [10] Green Chemistry
[5]4.b
[3]4.b.i

Explain the green chemistry principle “prevention of waste”.Explain the green chemistry principle “prevention of waste”.

Concept: undefined - undefined
Chapter: [10] Green Chemistry
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[2]4.b.ii

Write a note on ‘Matrix phase’ of composite material.

Concept: undefined - undefined
Chapter: [9] Composite Materials
[4]4.c

Mention four drawbacks of plain carbon steel.

Concept: undefined - undefined
Chapter: [7] Alloys
[15]5
[6]5.a

Calculate weight of air needed for complete combustion of 2kg of coal containing C=70%, H=10%, O=10%, N=5% and remaining ash.

Concept: undefined - undefined
Chapter: [8] Fuels
[5]5.b
[3]5.b.i

Explain the method of impressed current cathodic protection.

Concept: undefined - undefined
Chapter: [6] Corrosion
[2]5.b.ii

Give two purposes of alloying.

Concept: undefined - undefined
Chapter: [7] Alloys
[4]5.c

Explain conventional and green route of manufacturing of Adipic acid.

Concept: undefined - undefined
Chapter: [10] Green Chemistry
[15]6
[6]6.a

What is compaction in powder metallurgy?

Concept: undefined - undefined
Chapter: [7] Alloys
[5]6.b
[3]6.b.i

Mention the characteristic properties of composite materials.

Concept: undefined - undefined
Chapter: [9] Composite Materials
[2]6.b.ii

Distinguish between Cathodic Protection and Anodic Protection.

Concept: undefined - undefined
Chapter: [6] Corrosion
[4]6.c

Define fuel.

Concept: undefined - undefined
Chapter: [8] Fuels

Give the characteristics of good fuel.

Concept: undefined - undefined
Chapter: [8] Fuels

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