Eugenol is practically insoluble in water; it is hydrophobic.

Eugenol acts as an acid, NaOH acts as the base. NaOH strips a proton from eugenol, forming a salt, Na(eugenol(minus)H) and water.

Eugenol is a constituent of essential oils (lavender, rosemary, etc.) which are sometimes used to create cologne/perfume. So either the eugenol is just a part of the essential oils used to create the fragrance, or the eugenol is added as a preservative.

Eugenol is not chiral because it contains no assymmetric carbons. (carbons with 4 different groups attached to it)

NaOH strips the proton from eugenol giving the oxygen on eugenol a negative charge, a sodium cation, and water