Question

multiple choice 1 point
what is the role of dichloromethane (or a similar organic solvent) in the extraction of eugenol after steam distillation?
to remove water from the distillate.
to increase the boiling point of the mixture.
to dissolve eugenol in the organic layer.
to act as a catalyst in the reaction.
previous

Explanation:

Eugenol is more soluble in organic solvents like dichloromethane than in water. After steam distillation, adding dichloromethane allows eugenol to dissolve in the organic layer (since it is hydrophobic and organic - layer - preferring), enabling separation from the aqueous layer. Removing water (A) is not its main role here as it's about extraction. Increasing boiling point (B) is not relevant in this context. It is not acting as a catalyst (D) as no chemical reaction is being catalyzed in the extraction process.

Answer:

C. To dissolve eugenol in the organic layer.