Which of the following is considered to be a dangerous procedure in the laboratory setting?
A. Pouring all liquids, especially acids and bases, over the sink
B. Wearing goggles
C. Pushing glass tubing, thermometers, or glass thistle tubes through a rubber cork
D. Pointing the mouth of a test tube that is being heated away from you and others
E. Knowing where the fire extinguisher and eyewash stations are located
Answer (3)
The answer is (A) , because all other options are safety precautions, not dangerous.
I think it's c because a is good as it won't cause spills on the floor, b you must do for eye safety d) is also for safety so chemicals don't burn or spit at you And e is needed incase a fire occurs or something is in your eye and immediately needs washing out therefore c is the only one which could be a danger
The dangerous procedure in the laboratory setting is option C, which involves pushing glass tubing into a rubber cork, as it poses risks of glass breakage and potential chemical reactions. Safety protocols are crucial in the lab to prevent accidents. Other options provided are generally safe practices.
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