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3) Identify the diene used in the reaction shown below. H₂C: A) CN H₂C. A) D C) H₂C₂ H₂C CH₂ .. CH₂ CH₂ + diene B) C heat B) D) H₂C

CH₂ 3 CH₂ CH₂ C) A CN CH₂ D) B 3)

Fig: 1