Engineering Chemistry Unit 5 Notes AKTU (BAS102)

AKTU · BTECH · Semester 1, 2 · Engineering Chemistry · Unit 5 · Notes

AKTU Engineering Chemistry (BAS102) Unit 5 notes for B.Tech Semester 1/2 – Polymers and Organometallic Compounds. Topics: Classification of Polymers…

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Unit 5: Polymers and Organometallic Compounds – AKTU syllabus topics

  • Classification of Polymers: Thermosetting and Thermoplastic Polymers, Conducting and Biodegradable Polymers
  • Polymerization Processes
  • Polymer Blends and Composites
  • Industrial Polymers Properties Applications: Teflon Lucite Bakelite, Nylon Dacron Kevlar Thiokol, Buna-N and Buna-S Rubber
  • Organometallic Compounds: Grignard Reagent RMgX, Lithium Aluminium Hydride LiAlH4

Most asked AKTU PYQ questions from Unit 5

  1. Q2e. Distinguish between addition and condensation polymerization. Give monomers and one use each of PMMA, Polyethylene, Bakelite, PVC, Nylon 6,6, Buna S. (10 marks, 2020-21)
  2. Q7a. Explain with equations preparations of acid, ketone, alcohol, alkanes and Organometallic compound from Grignard reagent. (10 marks, 2020-21)
  3. Q7a. Explain the preparation, properties and applications of Grignard reagent (RMgX). Write reactions of ethyl magnesium bromide with: (i) HCHO (ii) CH₃CHO (iii) (CH₃)₂CO (7 marks, 2025-26)
  4. Q7b. Write the preparation, properties and uses of the following polymers: (i) Dacron (ii) Bakelite (iii) Nylon-6,6 (7 marks, 2025-26)
  5. Q7a. What are organ metallic compounds? How is Grignard reagent prepared? Give the reaction of CH3CH2MgBr with HCHO, CH3CHO and CH3COCH3? (7 marks, 2024-25)
  6. Q7b. What is Vulcanization of rubber? Write down the preparation and uses of (any three): (i) Nylon-6,6 (ii) Bakelite (iii) BUNA-N (iv) Neoprene Rubber (v) Teflone. (7 marks, 2024-25)
  7. Q7a. Why is it necessary to perform the preparation of Grignard reagents under anhydrous conditions? If 5.0 g of methylmagnesium bromide is reacted with an excess of benzaldehyde, how much benzyl alcohol (C₆H₅CH₂OH) is expected, assuming 85% yield? (7 marks, 2024-25)
  8. Q2e. Illustrate the preparation of Grignard Reagents and predict the final product obtained when C2H5MgBr react with (i) HCHO (ii) CH3CHO (iii) (CH3)2CO. (7 marks, 2023-24)
  9. Q7a. Give preparation, properties and applications of following polymer: (i) Neoprene (ii) Terylene (iii) Nylon 6,6. (7 marks, 2023-24)
  10. Q2e. Discuss the preparation of Grignard Reagent. Predict the final product obtained when C₂H₅MgBr reacts with (i) HCHO (ii) CH₃CHO (iii) (CH₃)₂CO (iv) CO₂ (7 marks, 2023-24)

AKTU paper codes: BAS102, BAS202, KAS102, KAS202

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