AP EAMCET202319 May 2023Morning ShiftChemistryPolymersActual
In which of the following chain termination step is absent?
Options
- APolymerisation of C ₆ H ₅ CH = CH ₂ by RLi
- BPolymerisation of C ₆ H ₅ CH = CH ₂ by BF ₃ and H ₂ O
- CPolymerisation of C ₆ H ₅ CH = CH ₂ by ( C ₆ H ₅ COO )₂
Correct answer
C. Polymerisation of C ₆ H ₅ CH = CH ₂ by ( C ₆ H ₅ COO )₂
Step-by-step solution
In the polymerisation of C ₆ H ₅- CH = CH ₂ by RLi , free radicals like C ₆ H ₅- CH = R CH ₂ and are formed. These radicals are very stable and thus the chain termination step is less favourable and does not occur.