Question

select the volumetric pipette.

Explanation:

A volumetric pipette is a laboratory instrument used to measure and transfer a precise volume of liquid. It has a bulb in the middle and a single graduation mark indicating its specific volume capacity. The first image shows a pipette with a bulb and a single mark (10 mL), which is characteristic of a volumetric pipette. The second image is a graduated pipette (with multiple markings for different volumes), and the third image is a beaker (used for general mixing and holding liquids, not for precise volume transfer like a volumetric pipette).

Answer:

The first image (the pipette with a bulb and a single graduation mark) is the volumetric pipette.