University of Mumbai 2008-2nd Sem B.E F.E Chemistry II - Question Paper

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First Year engineering semester two Chemistry II 2008.
Please obtain the attachment.

VT-May.OS 87

Con. 3520-08.

(REVISED COURSE)

(2 Hours)

N.B. :(1) Question No. 1 is compulsory.

(2) From remaining six questions attempt any four.

(3) Figures to the right indicate full marks.

(4) All questions carry equal marks.

Attempt any five from the following 15

(a) Define corrosion? List the various types of corrosion.

(bfWrite composition properties and uses of Duralumin? /

(c) Define fuels? Classify fuels with suitable example.

tite the applications of composite materials. / lat is green chemistry? List the principles of green chemistry. / at is catalyst? State the types of catalyst.

gf'Define the term calorific value and ignition temperature?

f Distinguish between Galvanizing and Tinning. 4

ibfWhat is powder metallurgy? How are metal powders prepared? 6

J&ifie % composition of mass of a sample of coal is as follows.

C=80%, H=6%, 0=8%, S=1.5%, N=l%, ash = rest.

Calculate the gross and net calorific value of Fuel. 5

Define composite material? Give the classification of composite materials? /

Explain laminates. 5

Explain Adsorption theory of heterogeneous catalysis? r 5

(c) What is>dfmg? Write advantages of catalytic cracking over thermal cracking? - 5

4 (a) Explain basic ideas in the field of green chemistry research with the help of 5

Synthesis Of indigo dye?

(b) A current of 2 Amp. was passed through a solution of copper sulphate for 16 minutes. 5 Calculate the amount of copper deposited on cathode?(Atomic weight of Copper= 63)

(c) What is Bio-diesel? Explain the method to obtain Bio-diesel from vegetable oil? 5 Give advantages of Bio-diesel.