Stereoselectivity, Stereospecificity and Stereo Structure of Polymers MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 23, 2025

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1. : Which one of the following is the polymer when each chiral centre has the same configuration?



2. : This is an example of which one? On reaction with NaOH, (S)-2-bromo octane gives (R)-2-octanol under SN2 conditions.



3. : The polymer chain consisting of which one monomeric unit, the tactic dyad has a segment of?



4. : Which of the following is the reaction which gives exclusively one of several possible isomeric products?



5. : In various degrees, stereoselectivity can be exhibited.


6. : ____ is an example of regioselective reaction.



7. : In correlating conformation and reactivity and in stereoselective synthesis, dynamic stereochemistry helps.


8. : This is an example of which one? For giving a syn product R – C = C – R reacts in the presence of linear catalyst.



9. : Atactic polymer is that in _____.



10. : Which of the following is the reaction that yields predominantly one enantiomer of a possible pair?



11. : Which of the following is the formula of enantiomeric excess?



12. : Which of the following is the reaction of (±) 2,3- dibromobutane is slower than meso in which the two methyl groups?



13. : On reaction with NaOH under SN2 conditions, (R)-2-bromo octane gives which one?



14. : Which one of the following is the polymer in which alternate chiral centres have the same configuration?



15. : __________ scientists won the Nobel prize for working in polymer stereochemistry.



16. : For a polymer to adopt crystalline morphology increases with which one stereo regularity the tendency?



17. : Which one of the following is the configuration of the isotactic dyad?



18. : Which of the following is the reaction in which stereochemically different molecules react differently?



 

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