Biotechnology EOPA Practice Test

Which instrument is used to transfer liquids into containers with small openings and has a wide mouth and narrow spout?

Funnel Beaker Graduated Cylinder Pipette

Correct Answer:

Funnel

Explanation:

Funnels are designed to pour liquids into containers with small openings by using a wide mouth and a narrow spout. The broad top catches and holds the liquid, while the slim stem guides it precisely into a bottle, flask, or test tube without splashing. This combination makes pouring into narrow openings much easier and safer, reducing spills. Beakers have wide mouths but no narrow spout, so they’re not ideal for directing liquid into small mouths. A graduated cylinder is built for measuring rather than guiding pours into another container. A pipette excels at delivering precise, small volumes but isn’t the general tool for transferring larger amounts into containers with narrow openings. So the funnel best fits the described use.

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