Which glassware is used to prevent splashing or evaporation when mixing?

• A. Beaker
• B. Graduated Cylinder
• C. Erlenmeyer Flask
• D. Volumetric Flask

Answer: (C)

When mixing, you want to minimize splashes and reduce evaporation while still being able to swirl the liquid to mix it. The Erlenmeyer flask is designed for this: its conical body gives a wide base for easy swirling, while the narrow neck helps keep liquid from splashing out and can be stoppered to limit evaporation.

Beakers have a wide opening, so liquids are more prone to splashing and evaporating during mixing. Graduated cylinders are built for accurate measurement rather than mixing, and their tall, narrow shape isn’t ideal for swirls. Volumetric flasks are designed for precise final volumes and have a long narrow neck, which isn’t convenient for vigorous mixing.