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overset (Mg//ether)rarr overset (D(2)O)r...

`overset (Mg//ether)rarr` overset (D_(2)O)rarr` `overset (Na//ether)rarr` (X)
The compound (X) is:

A

B

C

D

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The correct Answer is:
B
(C - Br) bond is weaker than (C - C1) bond. Grignard reagent is forrmed more predominantly with (C - Br).
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