What is the common laboratory tool used to accurately measure the volume of liquids?

• A. Hand Lens
• B. pH Meter
• C. Micropipette
• D. Graduated Cylinder

Answer: (D)

Measuring liquid volume relies on a tool that has clear volume markings you can read. A graduated cylinder is designed for this purpose, with marked increments along its length so you can determine how much liquid is present by reading the scale. You read the volume at the bottom of the meniscus, keeping the eye level with the marks to avoid parallax error. This setup provides a practical balance of ease of use and accuracy for many experiments.

Other tools mentioned serve different roles: a hand lens is for magnification, not measurement; a pH meter gauges acidity, not volume; a micropipette is excellent for transferring precise, very small volumes, but it’s not the typical instrument for measuring the volume of a liquid in a container.