Question -
Answer -

Answer
Since D of D2Ogets attached to the carbon atom to which MgBr is attached, C is

Therefore, the compound R − Br is

When an alkyl halide is treated with Na inthe presence of ether, a hydrocarbon containing double the number of carbonatoms as present in the original halide is obtained as product. This is knownas Wurtz reaction. Therefore, the halide, R1−X, is

Therefore, compound D is

And, compound E is
