Safety Quiz Organic Chem
In case of a major spill on you, you should:
use the safety shower immediately and a call to 911 should be made
What does it mean if a waste is referred to as aqueous waste?
water-based
Not every safety precaution protects you from every hazard you might encounter in the lab. Which of the following will not serve as protection against inhalation of chemicals?
wearing goggles
Not every safety precaution protects you from every hazard you might encounter in the lab. Which of the following will not serve as protection against skin absorption of chemicals? Group of answer choices
wearing goggles
Which of the following safety practices would best help you to avoid absorption of chemicals through the skin?
-Not touching exposed skin with your hands -Wearing an apron or lab coat -Not leaning against lab benches -Wearing gloves
Which of the following types of information are included in the NFPA diamond?
-Special Hazards -Flammability -Instability -Health Hazards
Chemicals which have a tendency to form peroxides can be extremely hazardous if distilled to dryness. Which of the following can readily form peroxides?
Ethers and Aldehydes and vinyl compunds
Ethers are flammable and volatile but not explosive or corrosive; peroxides are not flammable or volatile but are explosive and corrosiveWhich of the following statements is correct regarding the characteristics of ethers and peroxides?
Ethers are flammable and volatile but not explosive or corrosive; peroxides are not flammable or volatile but are explosive and corrosive
What does it mean when we say that a chemical is volatile?
It evaporates readily at room temperature and pressure.
Which of the following are corrosive chemicals?
Dehydrating agents, Bases, Oxidizing agents
What is the flash point of a substance?
The lowest temperature at which a liquid forms a mixture with air that is readily ignited.
What does "NFPA" stand for?
National Fire Protection Association
Which of the following statements are true of corrosive chemicals?
-Corrosive chemicals should always be added to water rather than vice versa when diluting them. -Spills of corrosives will not evaporate on standing -Soap should be used to clean off acidic corrosive substances spilled on the skin
Which of the following types of information can you find on an MSDS?
-How a substance should be transported. -What type of personal protection should be used -How the substance should be handled and stored. -Boiling point, flash point, and other properties. -Proper disposal instructions. -Hazards of a substance. -First aid measures. -Proper disposal instructions. -How the substance should be handled and stored.
When leaving the lab for the day, every student must:
-Turn the hood's lights off. -Drop the hood's sash down. -Not leave equipment in the hood. -Turn the power knob down to zero.
Which of the following are correct definitions?
A carcinogen is a cancer-causing chemical.
Which of the following chemicals can react with hemoglobin in the body?
Aniline
Which of the following statements are true regarding flammable and volatile chemicals?
Flammable chemicals are easily ignited and burn rapidly; volatile chemicals evaporate readily at room temperature and pressure.
Which of the following is true of flammable and combustible chemicals?
Flammable chemicals have flash points lower than 100 ºF (37.8 ºC); combustible chemicals have flash points higher than 100 ºF (37.8 ºC), but lower than 200 ºF (93.3 ºC).
If a chemical gets in your eyes, which of the following should you do?
Flush for 15 minutes with water, and then go to a doctor.
Which of the following statements apply to using glassware in the labs?
Hot glass and cold glass look the same, so when in doubt you should handle glassware with a towel
When is it OK to work at a space other than under the hood directly above your assigned drawer?
If you receive written permission from the lab manager.
Which of the following are true of working under a fume hood?
Items placed on the hood apron can fall because the apron is designed to be movable.
What does "MSDS" stand for?
Material Safety Data Sheets
Which of the following are true statements regarding glass and needle disposal?
Melting point capillaries should be disposed of in the broken glass waste
In order for the fume hoods to work properly, the doors of the lab:
Must be closed at all times
What type of waste can be discarded down the drain?
Non-hazardous aqueous waste only
What should you do in the event of power loss in the labs?
Once emergency lighting is provided, turn off powered equipment and then exit the lab.
Which of the following can ignite a flammable chemical?
Open Flames
What can happen if you seal all openings of a system and then heat it?
Pressure can build up and shatter the glassware.
Boiling chips are used to:
Promote even boiling and prevent superheating.
Which of the following safety practices would best help you to avoid inhalation of chemicals?
Re-capping solvent bottles, wiping up spills quickly
Which of the following statements are true?
The best way to prevent harm is simply to handle every chemical with care.
Which of the following apply to gas cylinders that may be used in labs?
They must always be secured properly when stored, and must be moved on a cart
Which of the following apply to pregnant women in the organic labs?
They must notify the lab manager in writing at once.
If a student forgets to wear closed-toe shoes to the organic lab, and cannot get their shoes in time to do the lab, which of the following will occur?
They will not be allowed to perform the experiment.
What is meant by chronic toxicity?
Toxicity resulting from long-term exposure to a chemical (months to years of exposure).
What is meant by acute toxicity?
Toxicity resulting from short-term exposure to a chemical (seconds to days of exposure).
In the event that you cut yourself, which of the following is the correct treatment?
Wash the cut, remove any glass, apply pressure if necessary, then get help if needed.
Which of the following safety practices would best help you to avoid ingestion of chemicals?
Wearing gloves
Not every safety precaution protects you from every hazard you might encounter in the lab. Which of the following will not serve as protection against ingestion of chemicals? Group of answer choices
Wearing goggles.
In the event of a fire, you can return to the lab:
When the fire department or safety personnel clear it.
Which of the following safety practices would best help you to avoid inhalation of chemicals?
Working under a hood
If you spill a chemical on your lab bench:
You should first neutralize acids or bases; then wipe up the spill.
What is usually the first symptom of a chemical spill on the skin?
Your skin will start to itch
What is the proper position of the sash on a fume hood when you are working at the hood?
at or below the "operating" position arrow on the side of the hood.