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You may remove your goggles while in the lab

16/11/2021 Client: muhammad11 Deadline: 2 Day

Final Lab Safety Quiz

1 | P a g e

1. You may remove your goggles while in the lab ________.

a) if no one is doing an experiment c) if no one is washing glassware

b) never until you have are ready to leave lab d) if you cannot see a chemical reaction clearly

2. Which of the following footwear is best in the laboratory?

a) hard-soled and closed-toed leather shoes c) sandals

b) open-toed shoes d) flip flops

3. If you don’t understand a direction or part of a laboratory procedure, you should

a) figure it out as you do the experiment c) try several methods until something works

b) skip it and go on to the next part d) ask the instructor before you start the experiment

4. After completing an experiment, all chemical wastes should be

a) disposed of according to the directions c) left at your lab station for the next class

b) dumped in the sink d) neutralized with acid or base and flushed

5. Which of the following can be prevented by wearing goggles?

a) inhaling dangerous gases c) getting chemicals splashed in your eyes

b) not being able to read any reagent labels d) exposing your hands to contamination

6. Which of the following is the correct procedure for smelling a chemical?

a) stick your nose close to the chemical and breath deep

b) smell any chemical as you would anything else

c) never smell a chemical

d) point the chemical away from your face while gently fanning vapors toward your nose.

7. What type of glassware is useful for transferring liquid chemicals from a big container to a small container?

a) 10-mL graduated cylinder c) pour directly from the big container to the small container

b) burette d) beaker

8. Which of the following can be prevented by washing your hands after working in the laboratory?

a) transferring a toxic substance from your hands into your eyes

b) orally ingesting a toxic substance from your hands

c) A and B

d) B and C

9. Which of the following statements is false?

a) never use a chemical if you cannot read the label on the container

b) never pipet liquids by mouth

c) wearing goggles and a safety apron at all times in the laboratory is optional

d) use “hot mitts” when handling a hot liquid or hot glassware

e) avoid wearing fabrics made of polyester, because it melts into the skin if it catches fire

10. If there is a beaker on your lab bench containing some unknown chemical, you should

a) dump it in the sink and wash the beaker

b) move it out of your way in case it is dangerous

c) find your instructor and ask what to do with it

d) give it to another student for disposal

e) put it on the instructor’s desk

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