5. Chirality
Optical Activity
2PRACTICE PROBLEM
(R)-Carvone is monoterpene responsible for the smell of spearmint. Considering the fact that (R)-carvone rotates the plane-polarized light in the counter-clockwise direction, answer the following questions:
(a) Should (R)-carvone be referred to as (d) or (l)?
(b) Should it be referred to as (+) or (−)?
(c) What would be the direction of rotation (d or l; + or −) for (S)-carvone?
![](https://lightcat-files.s3.amazonaws.com/problem_images/b2f4cc768b7dfdb2-1685633386705.jpg)
(R)-Carvone is monoterpene responsible for the smell of spearmint. Considering the fact that (R)-carvone rotates the plane-polarized light in the counter-clockwise direction, answer the following questions:
(a) Should (R)-carvone be referred to as (d) or (l)?
(b) Should it be referred to as (+) or (−)?
(c) What would be the direction of rotation (d or l; + or −) for (S)-carvone?