Question

Which piece of laboratory equipment is used to make precise measurement of only one volume?

• A. Beaker
• B. Graduated cylinder
• C. Volumetric flask
• D. Test tube
• E. Eudiometer

Answer 1

The correct option is C Volumetric flask

Volumetric flasks are used to measure volume of liquids . The liquid has accurate volume when the solution reaches to the corresponding marking on the scale. Volume is usually indicated in mL. During measurement of the volume the vessel must be placed on an even, horizontal support. The required volume is measured when the lower edge of meniscus of the liquid just touches the marking on the vessel.