Which flask is described as being used for storage, distillation receiving, layering in extraction, heating solvent for crystallizations, and as the crystallization flask?

• A. Graduated Cylinder
• B. Erlenmeyer Flask
• C. Separatory Funnels
• D. Filter Flask and funnel

Answer: (B)

The Erlenmeyer flask’s versatility comes from its conical shape and narrow neck. That design lets you swirl contents to mix or gently layer immiscible liquids without splashing, which is handy when performing extractions where distinct layers form. The wide, stable base makes it suitable for heating on a hot plate, and the narrow neck helps minimize solvent loss during heating or when crystallization is involved, especially if you want to stopper the flask. It also serves well as a storage vessel or a receiving flask for distillates because the neck can be stopper-sealed to prevent evaporation or contamination.

Compared with a graduated cylinder, which is optimized for precise measurement of liquids, a separatory funnel which is specialized for separating two immiscible liquids with a stopcock, and a filter flask, which is designed for vacuum filtration, the Erlenmeyer flask best fits all the described uses due to its flexible, general-purpose form.