Question 1

Which of the following is the most appropriate footwear for a chemistry laboratory?

Accepted Answer

Closed-toe shoes

Question 2

Why is it important to tie back long hair and secure loose sleeves when working in the lab?

Accepted Answer

To prevent hair and sleeves from catching fire or contaminating chemicals

Question 3

A student accidentally splashes hydrochloric acid into their eyes. What is the correct immediate response?

Accepted Answer

Rinse eyes thoroughly for up to 15 minutes and notify the teacher

Question 4

Which chemical hazard symbol indicates a substance that can cause fire when exposed to air or heat?

Accepted Answer

Flammable

Question 5

When transferring chemicals from one container to another, what is the safest procedure?

Accepted Answer

Pour slowly and carefully over the surface

Question 6

According to the NFPA diamond, what does a rating of 3 in the blue section indicate?

Accepted Answer

Severe health hazard; short exposure could cause serious injury

Question 7

Which of the following is NOT considered a safe lab practice?

Accepted Answer

Eating snacks in the lab

Question 8

A chemical is labeled with the following pictograms: flame, exclamation mark, and health hazard. Which additional hazard might be missing for toluene based on its properties?

Accepted Answer

Environmental hazard

Question 9

What is the correct order for mixing acid and water?

Accepted Answer

Add acid to water

Question 10

Which section of the Safety Data Sheet (SDS) provides information on first aid measures?

Accepted Answer

Section 4

Question 11

A student is exposed to acetone vapors. According to the SDS, what is the recommended first aid response?

Accepted Answer

Move to fresh air and seek medical attention if symptoms persist

Question 12

Which NFPA diamond color represents reactivity hazards?

Accepted Answer

Yellow

Question 13

What does the white section of the NFPA diamond indicate?

Accepted Answer

Special hazards such as oxidizer or corrosive

Question 14

Which of the following is a correct procedure for cleaning up broken glass in the laboratory?

Accepted Answer

Sweep up with a broom and dispose in a designated container

Question 15

A chemical is labeled as 'corrosive.' What is the best personal protective equipment to use?

Accepted Answer

Goggles and gloves

Question 16

Which of the following statements about SDS is TRUE?

Accepted Answer

SDS provides information on hazards, handling, and emergency procedures

Question 17

If a chemical spill occurs on your skin, what is the first step you should take?

Accepted Answer

Rinse thoroughly with water for at least 15 minutes

Question 18

Which of the following is considered an unauthorized lab activity?

Accepted Answer

Mixing chemicals without teacher approval

Question 19

A chemical has the following NFPA ratings: Blue 2, Red 3, Yellow 0, White COR. What does this indicate?

Accepted Answer

Moderate health hazard, high fire risk, stable, corrosive

Question 20

Which of the following best describes the purpose of a fume hood in the laboratory?

Accepted Answer

To ventilate and remove hazardous fumes during chemical reactions

Laboratory Safety, Chemical Hazard Communication, and the Nature of Science

Study Guide - Practice Questions

Study Guide - Flashcards