STUPIDSID
1 (a)
Derive Nernst's equation for single electrode potential.
5 M
1 (b)
Describe the construction and working of calomel eletrode.
5 M
1 (c)
What are batteries? Explain the following battery characteristics:
i) Capacity ii) Cycle life
i) Capacity ii) Cycle life
5 M
1 (d)
Describe the construction and working of nickel metal hydride battery.
5 M
2 (a)
What are Reference electrode? Explain the determination of electrode potential of an unknown electrode using calomel electrode.
5 M
2 (b)
What are concentration cells? The emf of the cell Ag |AgN(), (0.0083M)| AgNO3(x M) Ag was found to be 0.074V at 298 K. Calculate the value of x and write cell reaction.
5 M
2 (c)
Define fuel cell. Explain the construction and working of methanol oxygen fuel cell.
5 M
2 (d)
Explain the construction and working of lithium ion battery.
5 M
3 (a)
Explain the electrochemical theory of corrosion by taking iron as an example.
5 M
3 (b)
What is Corrosion? Explain the following factors affecting the rate of corrosion:
i) Nature of corrosion product
ii) Anodic and Cathodic areas.
i) Nature of corrosion product
ii) Anodic and Cathodic areas.
5 M
3 (c)
What is Electro less platting? Write the difference between electroplating and electroless platting.
5 M
3 (d)
Discuss the electroplatting of gold using Acidic Cyanide bath.
5 M
4 (a)
What is Anodising? Explain the anodizing of aluminium.
5 M
4 (b)
What is Cathodic protection? Explain sacrificial anodic method and impressed current method.
5 M
4 (c)
Explain the effect of any two factors on the nature of electro deposite.
5 M
4 (d)
Explain the process of electroless platting of copper with relevant reactions.
5 M
5 (a)
What is Cracking? Explain the fluidized catalytic cracking process.
5 M
5 (b)
On burning 0.76 × 10-3 kg of a solid fuel in a bomb calorimeter, the temperature and latent heat of steam are 0.486kg and 2457 kJ/kg respectively. Calculate its GCV and NCV. Give Sp Heat=4.187 kJ/kg/ °C and % H2 is 2.5.
5 M
5 (c)
Discuss the production of solar grade silicon by Union-Carbide process.
5 M
5 (d)
What are the advantages and disadvantages of PV cells?
5 M
6 (a)
Explain the determination of calorific value of a solid fuel using bomb calorimeter.
5 M
6 (b)
Define the following terms:
i) Chemical fuel
ii) Calorific value
iii) Biodiesel
iv) Octane number
v) Reforming of petrol.
i) Chemical fuel
ii) Calorific value
iii) Biodiesel
iv) Octane number
v) Reforming of petrol.
5 M
6 (c)
Discuss the construction and working of a PV-cell.
5 M
6 (d)
What is doping? Discuss the purification of silicon of zone-reining.
5 M
7 (a)
Explain the free radical mechanism of addition polymerization by taking Vinyl chloride as a monomer.
5 M
7 (b)
What are adhesives? Explain the synthesis and applications of epoxy resin.
5 M
7 (c)
Write the synthesis and applications of the following polymers:
i) Polymethyl methacrylate ii) Teflon
i) Polymethyl methacrylate ii) Teflon
5 M
7 (d)
What are polymer composites? Explain the preparation and uses of Kevlar fiber.
5 M
8 (a)
Calculate the number average and weight average molecular mass of a polymer with the following composition: \[ \begin{bmatrix} &\alpha \\ -CH_2&-CH \end{bmatrix}_{200} \ is \ 40\%; \\\begin{bmatrix} &\alpha \\-CH_2 &CH- \end{bmatrix}_{400} \ is \ 30\%; \\\begin{bmatrix} &\alpha \\-CH_2 &-CH - \end{bmatrix}_{500} \ is \ 30\% . \] Given At. Wt. of C-12, Atomic weight of H=1; and Atomic weight of CL=35.5
5 M
8 (b)
What is glass transition temperature? How is it affected by
i) Intermolecular forces
ii) Flexibility
i) Intermolecular forces
ii) Flexibility
5 M
8 (c)
What is Conducting polymer? Explain the mechanism of conduction in polyaniline.
5 M
8 (d)
Give the synthesis and uses of the following polymers:
i) Silicon rubber
ii) Polycarbonates.
i) Silicon rubber
ii) Polycarbonates.
5 M
9 (a)
What is boiler feed water? Explain the scale and sludge formation in boiler. Mention their ill effects.
5 M
9 (b)
What is desalination? Explain the desalination of saline water by electro dialysis.
5 M
9 (c)
What are nano materials? Explain the synthesis of nano material by Sol gel method.
5 M
9 (d)
Write a note on carbon nano tubes.
5 M
10 (a)
Define COD, calculate the COD of the effluent sample when 25 cm3 of the effluent sample requires 8.5 cm2 of 0.001 NK2Cr2O2 solution for complete oxidation.
5 M
10 (b)
Discuss in detail the softening of water by ion-exchange process.
5 M
10 (c)
Explain the synthesis of nanomaterials by hydro thermal process.
5 M
10 (d)
What are Fullereces? Explain the synthesis and uses of fullerenes.
5 M
More question papers from Engineering Chemistry