On a Lab Quiz,a Student Listed the Steps to Properly

question 12

Multiple Choice

On a lab quiz,a student listed the steps to properly use a pipet.Which step is incorrect?

• A)Use a rubber bulb to twice pull up a volume of liquid past the calibration mark and discard the contents into a waste container.
• B)Pull up a third volume past the calibration mark and quickly replace the bulb with the index finger.
• C)Touch the tip of the pipet to the side of a beaker and use the index finger to drain the liquid until the meniscus reaches the center of the calibration mark.
• D)Transfer the pipet to the receiving vessel,touch the tip of the pipet to the side of the vessel,and allow the pipet to drain by gravity.
• E)Use the rubber bulb to blow any remaining liquid from the pipet.

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Definitions:

Group Polarization Effect

A phenomenon where the presence of a group intensifies an individual's position, making the overall group's stance more extreme than initially individual opinions.

City Council

The legislative body that governs a city, town, or municipality, responsible for making decisions on local laws and policies.

License

Official permission or a legal document granting the right to operate in a specific field or to carry out a particular activity.

Group Polarization

The tendency for a group to make decisions that are more extreme than the initial inclination of its members following group discussion.