Q. The order of reactivities of methyl halides in the formation of Grignard reagent is
A) $CH_{3}I\ > \ CH_{3}Br\ > \ CH_{3}Cl$
B) $CH_{3}Cl\ > \ CH_{3}Br\ > \ CH_{3}I$
C) $CH_{3}Br\ > \ CH_{3}Cl\ > \ CH_{3}I$
D) $CH_{3}Br\ > \ CH_{3}I\ > \ CH_{3}Cl$
Explanation
(a)
Among alkyl halides, iodides are least stable, hence these form Grignard reagent easily. Hence, the correct order of reactivity in formation of Grignard reagent is
$CH_{3}I\ > \ CH_{3}Br\ > \ CH_{3}Cl$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.