Why , historically, has the soft drink industry been so profitable?

Very little information was available to both scientists and the general public about the properties of soft drinks. The industry also mastered advertising by using psychology to convince radio-listeners or television-viewers that their products are safe, delicious, and make for a great time. Think of all those Coca Cola commercials that you watch every now and then; try to remember the upbeat music, the party vibes, the overall message that the soft drink makes everything better.

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.