Q. The treatment of $CH_{3}MgX$ with $CH_{3}C \equiv C - H$ produces
A) $CH_{3} - CH = CH_{2}$
B) $CH_{3}C \equiv C - CH_{3}$
C) $H\ \ \ \ \ \ \ H$
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$CH_{3} - C = C - CH_{3}$
D) $CH_{4}$
Explanation
(d)
Terminal alkyne has acidic hydrogen which is enough to protonate the Grignard reagent.
$CH_{3}MgX + CH_{3}C \equiv CH$
$\rightarrow CH_{4} + CH_{3}C \equiv CMgX$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.