A laboratory instrument used to measure, dispense, and transfer very small amounts of liquid

• A. Graduated Cylinder
• B. Micropipette
• C. Water Bath
• D. Erlenmeyer Flask

Answer: (B)

The ability to measure and transfer very small liquid volumes with precision is what the micropipette is built for. It lets you set an exact volume, draw liquid into a disposable tip, and dispense it in controlled amounts, which is essential when working in the microliter range and needing consistent, repeatable results. This precision—often with adjustable ranges like P20, P200, or P1000 and tips designed to minimize dead space and bubbles—makes the micropipette the best instrument for tiny-volume work.

Other instruments don’t fit this need. A graduated cylinder is meant for estimating larger volumes with less precision, not for tiny, accurate transfers. A water bath is used to maintain a set temperature, not to measure or transfer liquids. An Erlenmeyer flask is for mixing and holding liquids and may have volume markings, but it isn’t designed for precise measurement or transfer of very small amounts.