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Question: Answered & Verified by Expert
Which of these do not form Grignard reagent
ChemistryHaloalkanes and HaloarenesJEE Main
Options:
  • A $\mathrm{CH}_3 \mathrm{~F}$
  • B $\mathrm{CH}_3 \mathrm{Cl}$
  • C $\mathrm{CH}_3 \mathrm{Br}$
  • D $\mathrm{CH}_3 \mathrm{l}$
Solution:
1817 Upvotes Verified Answer
The correct answer is: $\mathrm{CH}_3 \mathrm{~F}$
The $C-F$ bond energy is maximum in $\mathrm{CH}_3 F$. Thus fluoride is the less reactive to form the grignard reagent with $M g$.

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