A sample consisting of the pure R enantiomer of a compound will always rotate plane-polarized light in a clockwise direction.

Question

Quizplus · Accepted Answer

The direction in which a pure enantiomer rotates plane-polarized light (clockwise or counterclockwise) is a characteristic of its molecular structure and is not the same for all R enantiomers. Some R enantiomers may rotate light clockwise (dextrorotatory), while others may rotate it counterclockwise (levorotatory).

A Sample Consisting of the Pure R Enantiomer of a Compound