Answer:
See explanation and image attached
Explanation:
The Gilman reagent is a lithium and copper (diorganocopper) reagent with a general formula R2CuLi. R is an alkyl or aryl group.
They are useful in the synthesis of alkanes because they react with organic halides to replace the halide group with an R group.
In this particular instance, we intend to synthesize propylcyclohexane. The structure of the lithium diorganocopper (Gilman) reagent required is shown in the image attached to this answer.
Notice q=3/2, is half of the original q = 3(<span>1/2</span>)<span>t/28.8
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Opposite pairs form ionic bonds, due to this the answer is D - Li and Br; They have unlike charges.