Which type of glassware is TC to contain?

The volumetric flask is specifically designed for measuring precise volumes of liquid. It has a narrow neck and a flat bottom, which allows for accurate filling to a defined line that indicates a specific volume. The "TC" designation means "to contain," implying that the flask is used to hold a precise volume of liquid when filled up to its mark. This characteristic is critical in laboratory settings where exact measurements are necessary for solutions and reactions.

The other types of glassware, such as beakers and Erlenmeyer flasks, are more suited for mixing and general measurements rather than precise volume containment. A single volume pipet can be used to transfer a specific volume of liquid, but it does not serve the same function as a volumetric flask in terms of containing a defined quantity when it is filled to the marked line. Therefore, the volumetric flask is the proper choice when discussing glassware that is TC to contain.