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- A limited number of chiral compounds having no stereogenic centersexist. For example, although A is achiral, constitutional isomer B ischiral. Make models and explain this observation. Compoundscontaining two double bonds that share a single carbon atom are calledallenes. Locate the allene in the antibiotic mycomycin and decidewhether mycomycin is chiral or achiral.A solution prepared by mixing 10 mL of a 0.10 M solution of the R enantiomer of a compound and 30 mL of a 0.10 M solution of the S enantiomer was found to have an observed specific rotation of +4.8. What isthe specific rotation of each of the enantiomers? (Hint: mL * M = millimole, abbreviated as mmol)cis-Dimethylcyclobutane has two planes of symmetry. Draw the compounds and identify both planes of symmetry. Is cis-Dimethylcyclobutane optically active?
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