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Download SGBAU BSc 2019 Summer 5th Sem Petrochemical Science Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BSc 2019 Summer (Bachelor of Science) 5th Sem Petrochemical Science Previous Question Paper

This post was last modified on 10 February 2020

This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university


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B.Sc. (Part—III) Semester—V Examination

5S : PETROCHEMICAL SCIENCE

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Time : Three Hours] [Maximum Marks : 80

Note :—(1) Question No. 1 is compulsory and carries 8 marks.

(2) The remaining SIX questions carry 12 marks each.

(3) Draw a diagram and chemical equation wherever necessary.

  1. (a) Fill in the blanks :
    1. The molecular weight of large polymer depends on their number of present in that polymer.
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    3. Diene polymer comprisely known as
    4. enhance the crystalisability of wax without dissolving oil.
    5. The chain of consist of only one type of monomer units.
    2
  2. (b) Choose correct alternatives :
    1. Polyisoprene is well known ~ polymer.
      1. (a) Plastics
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      3. (b) Rubber
      4. (c) Fiber
      5. (d) All above
    2. In suspension polymerization process _ play an important role for removal of heat.
      1. (a) Air
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      3. (b) Salt
      4. (c) Water
      5. (d) Caustic
    3. High pressure polyethylene manufacturing process was developed by
      1. (a) ICI
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      3. (b) TCS
      4. (c) MDCC
      5. (d) UDP
    4. Polyvinyl acetate is mainly used in ____
      1. (a) Cement
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      3. (b) Paint
      4. (c) Bitumen
      5. (d) None of these
    2
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  4. (c) Answer in one sentence each :
    1. Which are three distinct stages of chain polymerization ?
    2. Which two steps are involved in production of diisobutylene ?
    3. What is Polymides ?
    4. What is the major drawback of polystyrene polymer ?
    4
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  6. (A) Describe free radical chain polymerization with example. 6
  7. (B) Classify the polymers with the structure. 6

    OR

  8. (P) Describe mess polymerization.
  9. (Q) What is Polymer ? Explain with type, monomers used and also explain degree of polymerization. 6
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  11. (A) How polypropylene are formed describe all steps involved in polymerization of polypropylene and also give the uses of polypropylene. 6
  12. (B) Describe year-wise history of polyethylene production with respect to catalyst and process parameters involved. 6

    OR

  13. (P) Ethylene-propylene copolymers are formed in various mole range. How they are formed ? Describe with respect to process parameters. 6
  14. (Q) Describe Phillips medium pressure process for production of polyethylene with respect to process parameters and their uses. 6
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  16. (A) Describe dimerization of isobutylene with respect to their chemistry and process parameter in detail. 6
  17. (B) Describe Goodyear 3D process for production of isoprene monomer in detail. 6

    OR

  18. (P) How styrene-butadiene block copolymers are prepared ? Describe in detail. 6
  19. (Q) Describe production of polyisobutylene with respect to their chemistry and process parameters involved. 6
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  21. (A) Which are the styrene polymers and copolymer ? How we will produce polystyrene ? Give the techniques extensively followed in industry. 6
  22. (B) Vinyl chloride is a monomer of PVC. Describe PVC production with respect to physical properties of monomer and also give the uses of PVC. 6

    OR

  23. (P) Describe the following with their market :
    1. Impact polystyrene 4
    2. Vinyl chloride — vinyl acetate copolymer 4
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    4. Polystyrene. 4
  24. (A) What is Polyesters ? Describe saturated polyester with their chemistry and process parameters involved. 8
  25. (B) Describe the chemistry and process parameters for production of nylon-6, 10. 4

    OR

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  27. (P) Describe the production of phenolic thermosetting resin with their chemistry and process parameters 6
  28. (Q) What is nylon ? Give their example and describe production of Nylon-6 6 with their chemistry and process parameters involved 6
  29. (A) Describe both processes for manufacture of calcium grease. 6
  30. (B) What is the principle involved in solvent dewaxing ? Describe Barisol process in detail. 6

    OR

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  32. (P) Give the uses of following :
    1. Wax
    2. Bitumen.
  33. (Q) What is bitumen ? Which tests and properties are prescribed for bitumen ? Discuss any one of them. 6

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This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university

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