Elastomers – Biochemical Engineer MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 22, 2025

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1. : Which of the following is the tensile strength (kg/cm²) of vulcanised rubber?



2. : Which of the following is the percentage of butadiene and styrene in Buna-S?



3. : The application of SBR is ____________.



4. : __________ act as a catalyst in preparation of Buna-S.



5. : ___________ has the best resistance to oils.



6. : ____________ act as a catalyst in the preparation of butyl rubber.



7. : The statement that is incorrect about the SBR is __________.



8. : Which of the following is the solvent that is used in the preparation of butyl rubber?



9. : Which of the following is the major constituent of butyl rubber?



10. : Which of the following is the Natural rubber?



11. : Not the essential structural requirement of an elastomer is ______________.



12. : Not an application of neoprene is ____________.



13. : In the vulcanisation process, with which of the following the raw rubber is heated?



14. : Which of the following is the structural formula of isoprene?



15. : At which of the following temperatures is the raw rubber heated for the vulcanisation process?



16. : Which of the following is the incorrect statement?



17. : The incorrect statement is that the Vulcanised rubber has ______________.



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