Due to the result some sort of aberrant magnetic fluctuation, my alarm clock is no longer dextrorotatory. Sorry I'm late....
One was dextrorotatory when dissolved in aqueous solution, the other was levorotatory.
The direction of rotation of polarized light passing through a liquid in a polarimeter can be determined by observing whether the light rotates clockwise (dextrorotatory) or counterclockwise (levorotatory). This rotation is caused by the specific molecular structure of the compounds present in the liquid, which interact with the plane-polarized light. Polarimeters are used to measure the degree of rotation and classify the liquid as either dextrorotatory or levorotatory.
This is to do with chemicals which are optically active, which means they rotate the plane of polarized light which is passed through them. Dextrorotatory means that the plane of polarization is rotated to the right, or clockwise, as observed when facing the oncoming light. Levo, or laevo-rotatory is the opposite, rotation to the left. Molecules which do this are mirror images of each other.
SYNONYMS: dextrorotary, dextrorotatory, right-handed ANTONYMS: counterclockwise, countraclockwise, anitclockwise
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