Engineering FE Engineering Common Sem 2 May 2023 2023 FESEM2Applied Chemistry II Question Paper - Mumbai University | munotes
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Questions asked in this paper
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Q1 Answer any five: 15 marks
- a) Platinum does not undergo oxidation corrosion. Give reason
- b) Write a note on ‘Green Solvents’
- c) What is biodiesel? Write transesterification reaction
- d) What are the constituents of composites? Give functions of matrix phase
- e) Give composition, properties and uses of Wood’s metal
- f) What is stress corrosion? Explain with the help of example
- g) 2.48 gm of coal sample was subjected to Kjeldahl’s method and liberated ammonia required 16.5 ml 4 N the amount of nitrogen 2.a) What are the conditions for electrochemical corrosion? With the help of diagram and reactions, explain the mechanism of electrochemical corrosion of iron in neutral
- b) Explain fixed bed catalytic cracking with the help of neat and labelled diagram. 5
- c) Calculate the atom economy of toluene with respect to the following reaction: The percentage composition of a sample of coal was found to be: C = 86%, H= 8%, N= 1%,S moisture = 1.5%, and the remaining Carbon dioxide. Calculate the minimum weight and volume of air at STP required for complete combustion of 10 kg of
- b) Give the conventional and alternate routes of synthesis of Carbaryl and explain the principle of green chemistry involved in it. 5
- c) Explain the following factors affecting rate of corrosion:
- a) Area of cathode and anode position of metal in galvanic series 4 What are shape memory alloys? Explain with the help of example. Give their properties and
- b) Explain the impressed current method used for protecting the series of underground pipes with the help of diagrams 5
- c) Give an account of sandwich panels with the help of diagram 4 What is refining of petroleum? What are the steps involved in it? Explain with the help of neat and labelled diagram. 6
- b) Give classification of plain carbon steels. What is the function of Carbon in steel? 5
- c) Describe the process of hot compaction with the help of neat and labelled diagram. 4
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Q6 a) i) Define paint and list the constituents of paint. 2 marks
- ii) Distinguish between anodic and cathodic coating. 4
- b) A gaseous fuel has following composition: H2 = 8%, C2H2=39%, 18% O2=4%, CO=12%, H20=5%, CoH4= 9% and rest is ash. Calculate the volume and weight of air required for the complete combustion of 1m? gas. 5
- c) What is powder metallurgy? Explain the process of atomization with the help of neat and
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