Which item is primarily used for conducting reactions and mixing solutions?

The Erlenmeyer flask is specifically designed for conducting reactions and mixing solutions due to its unique shape. Its narrow neck prevents spillage during mixing and allows for easy swirling without the risk of the liquid spilling over the sides. The conical shape also facilitates the efficient mixing of solutions and is ideal for boiling liquids, as it minimizes the risk of evaporation.

In laboratory settings, the Erlenmeyer flask is often used for titrations and reactions that require careful mixing. Its design allows for the incorporation of a stopper if needed, which is advantageous for reactions requiring control over the gaseous environment.

While other types of glassware, such as beakers, filter flasks, or boiling flasks, can also be used for mixing solutions, they serve specific purposes that make them less suitable as the primary choice for conducting reactions. For instance, beakers are generally less effective in preventing spills and controlling evaporation compared to the Erlenmeyer flask, and boiling flasks are primarily designed for heating liquids rather than for conducting reactions.