Laboratory Safety

Question 1

TRUE/FALSE

Unused flammable water-insoluble organic solvents maybe poured into drains or sinks

Answer 1

FALSE

Question 2

TRUE/ FALSE

Wearing of shorts in the laboratory is allowed in the laboratory as long as you wear laboratory gown over it.

Answer 2

FALSE

Question 3

TRUE/FALSE

Absolutely no food or beverages is allowed inside the laboratory even when you are hungry

Answer 3

TRUE

Question 4

TRUE/FALSE

With a brush and dust pan throw broken glassware in the regular trash containers

Answer 4

FALSE

Question 5

TRUE/FALSE
To wash off chemical which accidentally comes in contact with your skin, it is best to rinse the affected area with alcohol

Answer 5

FALSE

Question 6

TRUE/FALSE

Cracked or seriously chipped apparatus should always be handled with care when using them in the lab

Answer 6

FALSE

Question 7

TRUE/FALSE

Sometimes, injury or an accident cannot be avoided in the laboratory.

Answer 7

FALSE

Question 8

TRUE/FALSE

Wearing goggles can protect your eyes from spill hazards and fumes.

Answer 8

FALSE

Question 9

TRUE/FALSE

When dealing with concentrated acids and bases, and bromine solutions, latex gloves must be worn

Answer 9

TRUE

Question 9

TRUE/FALSE

You may work alone in the lab to make up for a reasonable absence only with the express permission of your instructor

Answer 9

FALSE

Question 10

What is the best substance to use during acid spill?

Answer 10

Sodium bicarbonate

Question 10

TRUE/FALSE

In evacuating the bldg. during fire or earthquake, running as fast as you can must be avoided.

Answer 10

TRUE

Question 11

In handling broken glassware which of the following must not be done?

Answer 11

using tissue paper to pick up very small bits of broken glassware

Question 12

TRUE/FALSE
Do not pour flammable liquids when there are open flames within several feet

Answer 12

TRUE

Question 12

TRUE/FALSE

Organic solvents can be drained into the sink then flushed with plenty of water

Answer 12

FALSE

Question 13

What is the proper way of heating a flammable liquid

Answer 13

Use a water or steam bath

Question 13

When do u need to work in a fume hood?

Answer 13

• when handling noxious chemicals
• handling bromine and acetic anhydride
• performing reactions that produce toxic gases

Question 14

TRUE/FALSE

Pleasant smelling can vapors can be inhaled

Answer 14

FALSE

Question 15

What will u do if ever u are unsure about safety in the lab

Answer 15

Ask the instructor

Question 15

What is the most important reason why u must be in the lab before the class begins?

Answer 15

to hear the safety lectures for the day’s experiment

Question 16

Why wearing of contact lenses is not allowed in the lab?

Answer 16

it can absorb chemicals in the air. Goggles cant protect u from fumes which may lead to drying your contact lenses out and may result in the necessity of an operation for removal

Question 16

what is the penalty for offenders of horseplay in the lab?

Answer 16

offenders will be marked zero in the performed activity

Question 17

how to detect presence of cracks in glassware?

Answer 17

put the flask up to the light and thoroughly check all the surfaces

Question 18

It provide necessary information about hazards or chemical toxicity for chemicals/ materials that will be used during the experiment to prevent minor and major accidents

Answer 18

Material Data Sheets