WBJEE · Chemistry · Hydrocarbons
\(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{C} \mathrm{MgBr}\) can be prepared by the
reaction of
- A \(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{C}-\mathrm{Br}\) with \(\mathrm{MgBr}_{2}\)
- B \(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CH}\) with \(\mathrm{MgBr}_{2}\)
- C \(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CH}\) with \(\mathrm{KBr}\) and \(\mathrm{Mg}\) metal
- D \(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CH}\) with \(\mathrm{CH}_{3} \mathrm{MgBr}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CH}\) with \(\mathrm{CH}_{3} \mathrm{MgBr}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{CH}_{3}-\mathrm{C} \equiv \mathrm{CMg}\) Br can be prepared by the reaction of \(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}\) with \(\mathrm{CH}_{3} \mathrm{MgBr}\). This method is used in preparation of higher alkynes from lower alkynes. The chemical equation for the…
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