Which device is used to transfer liquids safely in the lab instead of mouth pipetting?

Which device is used to transfer liquids safely in the lab instead of mouth pipetting?

• A. Beaker tongs.
• B. Funnel.
• C. Mechanical pipette with a bulb or pump.
• D. Wash bottle.

Answer: (C)

Transferring liquids safely in the lab relies on removing mouth contact and providing precise control over the volume. A mechanical pipette with a bulb or pump lets you aspirate a defined amount into a disposable tip and then dispense it into another container with the plunger, keeping your hands and face away from the liquid and reducing exposure to hazardous reagents. Its design also minimizes splashes and ensures accuracy, which is essential for experiments. The other devices serve different purposes: beaker tongs are for moving glassware, a funnel guides pouring but doesn't control exact volumes, and a wash bottle is for rinsing or delivering small, often non-quantified amounts of liquid. So the pipette with a bulb or pump is the best choice for safe, precise liquid transfer.

Transferring liquids safely in the lab relies on removing mouth contact and providing precise control over the volume. A mechanical pipette with a bulb or pump lets you aspirate a defined amount into a disposable tip and then dispense it into another container with the plunger, keeping your hands and face away from the liquid and reducing exposure to hazardous reagents. Its design also minimizes splashes and ensures accuracy, which is essential for experiments. The other devices serve different purposes: beaker tongs are for moving glassware, a funnel guides pouring but doesn't control exact volumes, and a wash bottle is for rinsing or delivering small, often non-quantified amounts of liquid. So the pipette with a bulb or pump is the best choice for safe, precise liquid transfer.