This download link is referred from the post: SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university
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.
- (a) Fill in the blanks :
- The molecular weight of large polymer depends on their number of present in that polymer.
- Diene polymer comprisely known as
- enhance the crystalisability of wax without dissolving oil.
- The chain of consist of only one type of monomer units.
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- (b) Choose correct alternatives :
- Polyisoprene is well known ~ polymer.
- (a) Plastics
- (b) Rubber
- (c) Fiber
- (d) All above
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- In suspension polymerization process _ play an important role for removal of heat.
- (a) Air
- (b) Salt
- (c) Water
- (d) Caustic
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- High pressure polyethylene manufacturing process was developed by
- (a) ICI
- (b) TCS
- (c) MDCC
- (d) UDP
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- Polyvinyl acetate is mainly used in ____
- (a) Cement
- (b) Paint
- (c) Bitumen
- (d) None of these
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- Polyisoprene is well known ~ polymer.
- (c) Answer in one sentence each :
- Which are three distinct stages of chain polymerization ?
- Which two steps are involved in production of diisobutylene ?
- What is Polymides ?
- What is the major drawback of polystyrene polymer ?
- (A) Describe free radical chain polymerization with example. 6
- (B) Classify the polymers with the structure. 6
OR
- (P) Describe mess polymerization.
- (Q) What is Polymer ? Explain with type, monomers used and also explain degree of polymerization. 6
- (A) How polypropylene are formed describe all steps involved in polymerization of polypropylene and also give the uses of polypropylene. 6
- (B) Describe year-wise history of polyethylene production with respect to catalyst and process parameters involved. 6
OR
- (P) Ethylene-propylene copolymers are formed in various mole range. How they are formed ? Describe with respect to process parameters. 6
- (Q) Describe Phillips medium pressure process for production of polyethylene with respect to process parameters and their uses. 6
- (A) Describe dimerization of isobutylene with respect to their chemistry and process parameter in detail. 6
- (B) Describe Goodyear 3D process for production of isoprene monomer in detail. 6
OR
- (P) How styrene-butadiene block copolymers are prepared ? Describe in detail. 6
- (Q) Describe production of polyisobutylene with respect to their chemistry and process parameters involved. 6
- (A) Which are the styrene polymers and copolymer ? How we will produce polystyrene ? Give the techniques extensively followed in industry. 6
- (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
- (P) Describe the following with their market :
- Impact polystyrene 4
- Vinyl chloride — vinyl acetate copolymer 4
- Polystyrene. 4
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- (A) What is Polyesters ? Describe saturated polyester with their chemistry and process parameters involved. 8
- (B) Describe the chemistry and process parameters for production of nylon-6, 10. 4
OR
- (P) Describe the production of phenolic thermosetting resin with their chemistry and process parameters 6
- (Q) What is nylon ? Give their example and describe production of Nylon-6 6 with their chemistry and process parameters involved 6
- (A) Describe both processes for manufacture of calcium grease. 6
- (B) What is the principle involved in solvent dewaxing ? Describe Barisol process in detail. 6
OR
- (P) Give the uses of following :
- Wax
- Bitumen.
- (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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