Question

define dextrorotatory and levorotatory

Answer 1

The prefix dextro comes from the Latin word dexter. It means "to the right". A dextrorotatory compound is often, but not always, prefixed "(+)-" or "D-". If a compound is dextrorotatory, its mirror image counterpart is levorotatory. That is, it rotates the plane of polarized light counterclockwise (to the left).

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Answer 2

These terms are used to define the rotation of plane polarized light.

Dextrorotary : This is the property of a compound to rotate the plane of a polarized light to the right or in clockwise rotation when reaches the observer.

Levorotatory : This is the property of a compound to rotate the plane of a polarized light to the left or in anticlockwise rotation when reaches the observer.

If a compound is dextrorotatory, its Mirror image counterpart will be levorotatory.