1) What is a beaker used for in a laboratory? a) Heating substances b) measuring and holding liquids c) crushing substances d) Holding specimens for microscopic examination 2) 2. Which equipment produces a single flame and is used for heating substances? a) Flask b) Slide c) Bunsen burner d) Pipette 3) What is the primary purpose of a microscope in a laboratory? a) To mix fluids b) To separate substances based on density c) To magnify tiny objects d) To hold liquids for laboratory tests 4) Which equipment is used to crush and grind substances into a fine powder? a) Beaker b) Mortar and pestle c) Stirring rod d) Test tube 5) What does a centrifuge do? a) Spins samples very quickly to separate substances based on density b) Measures the intensity of light absorbed by a solution c) Used for precise addition of a solution in titration experiments d) Produces a single flame for heating 6) Which equipment is used to separate DNA, RNA, or protein molecules based on their size? a) Titrator b) Rotary evaporator c) Petri dish d) c. Gel Electrophoresis system 7) What is the primary function of an autoclave? a) To separate mixtures into their individual components b) To magnify tiny objects c) For the efficient removal of solvents from samples d) For sterilizing equipment using high-pressure steam 8) Which safety equipment is used to protect the eyes from splashes, fumes, and debris? a) Lab coat b) Gloves c) Safety goggles d) Fire blanket 9) What is the purpose of a fire extinguisher in a laboratory? a) To protect against splashes flying debris b) To put out small fires in emergency situations c) To provide a flow of water to rinse off a person d) To protect the wearer from inhaling harmful substances 10) Which equipment is a ventilated enclosure that protects the user from inhaling toxic fumes? a) Hotplate b) Fume hood c) Safety shield d) Respirator

Chemical equipment B2-C1

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