Question

When reading the volume of a liquid against a graduation mark, hold the device at eye level and read the mark ____ the meniscus.

A. Above meniscus
B. From below towards the center of meniscus
C. From above towards the center of meniscus
D. At the bottom of the meniscus

Answer 1

To measure the volume of a liquid against a graduation mark in a graduated cylinder, you need to read the mark at the bottom of the meniscus, the lowest point of the curved surface of the liquid.

Step-by-step explanation:

To measure the volume of liquid in a graduated cylinder, you should make a reading at the bottom of the meniscus, the lowest point on the curved surface of the liquid. The meniscus occurs because of the adhesive and cohesive forces between the liquid and the container walls. It can either be concave or convex, and you need to read the volume at the lowest point of the curve, which is the bottom of the meniscus.