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JEE Main levelSingle correct optionDifficulty 2 of 3hx175

Lithium dimethylcuprate, , reacts with benzyl bromide, . The organic product is

  1. Atoluene
  2. Bethylbenzene
  3. Cpropylbenzene
  4. D1,2-diphenylethane

Answer: B

Gilman reagents (from 2 RLi + CuI) couple one alkyl group with an organic halide, . Here replaces Br: , ethylbenzene.
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