Is alpha-pinene superimposable on its mirror image? Moleculesthat are not superi

Question

Is alpha-pinene superimposable on its mirror image? Moleculesthat are not superimposable on their miror images rotate the planeof polarized light (optical rotation) if there is more than onemirror image than another in a given sample. In the model of heptane where the chain is fully extended andanother model been its mirror image . Are these two mirror imagessuperimposable? Should a sample of pure heptane exhibit opticalrotation? Then a model of ethanol and its mirror image---should asample of pure ethanol exhibit rotation? Is alpha-pinene superimposable on its mirror image? Moleculesthat are not superimposable on their miror images rotate the planeof polarized light (optical rotation) if there is more than onemirror image than another in a given sample. In the model of heptane where the chain is fully extended andanother model been its mirror image . Are these two mirror imagessuperimposable? Should a sample of pure heptane exhibit opticalrotation? Then a model of ethanol and its mirror image---should asample of pure ethanol exhibit rotation?

Explanation / Answer

Chiral molecule only exhibit optical rotation.Heptane is not achiral molecule, so it cann't exhibit optical rotation. Simillarly pure ethanol also not exhibit the opticalrotation .
alpha-pinene superimposable on its mirror image so it is notrotating the plane polarized light. so the mixture of these alsonot having optical rotation.

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