Question

Which of these do not form Grignard reagent?

• A. $CH_{3}Cl$
• B. $CH_{3}F$
• C. $CH_{3}Br$
• D. $CH_{3}I$

Answer 1

Answer: (B)

$CH_{3}F$

Answer 2

The $C-X$ bond energy is maximum in $CH_{3}F$ hence, fluoride is less reactive to form the Grignard reagent with Mg.