Which glass container has a cylindrical shape and a pouring lip, used especially in laboratories?

• A. Bottle
• B. Beaker
• C. Centrifuge
• D. Concave Microscope Slide

Answer: (B)

A beaker matches that description. It’s a cylindrical glass container with a pouring lip (spout) that labs use for mixing, heating, and transferring liquids. The shape makes it easy to swirl contents, and the lip helps pour without spilling. A bottle isn’t defined by a pour lip in the same lab context and often has a narrower neck, a centrifuge is a machine for spinning samples, and a concave microscope slide is a small glass piece used for examining specimens, not for holding or pouring liquids.