Engineering Chemistry Unit 5 – Polymers and Organometallic Compounds: important questions for AKTU
Unit 5 (Polymers and Organometallic Compounds) questions that AKTU repeats most often. This unit carries about 26 marks per paper. Start with the repeated questions, then the most asked topics.
Most repeated Unit 5 questions
- 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, 2026, Organometallic Compounds) – also asked in 2021, 2022, 2023, 2024, 2025
- Write the preparation, properties and uses of the following polymers: (i) Dacron (ii) Bakelite (iii) Nylon-6,6 (7 marks, 2026, Industrial Polymers Properties Applications) – also asked in 2021, 2022, 2023, 2024, 2025
- What are organ metallic compounds? How is Grignard reagent prepared? Give the reaction of CH3CH2MgBr with HCHO, CH3CHO and CH3COCH3? (7 marks, 2025, Organometallic Compounds) – also asked in 2021, 2022, 2023, 2024, 2026
Most important Unit 5 topic
- Classification of Polymers (Unit 5: Polymers and Organometallic Compounds) – asked 14 times in 2021, 2022, 2023, 2024, 2025, 2026
Most asked Unit 5 topics
- Classification of Polymers – asked 14 times
- Industrial Polymers Properties Applications – asked 12 times
- Organometallic Compounds – asked 12 times
More Unit 5 previous year questions
- What are polymer blends? Give one example. (2 marks, 2026, Polymer Blends and Composites)
- What are conducting polymers? Explain their classification and applications with suitable examples. (7 marks, 2026, Classification of Polymers)
- Ethan (C2H6) not forms polymer but ethene (C2H4) forms polymer why? (2 marks, 2025, Polymerization Processes)
- Why can thermosetting polymers not be reshaped upon heating, while thermoplastic polymers can? (2 marks, 2025, Classification of Polymers)
- What is conducting polymer? Which conducting polymer is generally use in electronic touch screen. Give the Advantages and limitations of conducting polymers. (7 marks, 2025, Classification of Polymers)
Unit 5 syllabus topics
- Classification of Polymers
- Polymerization Processes
- Polymer Blends and Composites
- Industrial Polymers Properties Applications
- Organometallic Compounds