Question

dangerously reactive
oxidizer
other toxic effects
biohazard

28
a flammable material may be heated over a bunsen bur
true
false

29
unused chemicals should be returned to the
true
false

Explanation:

Question 28

Heating a flammable material over a Bunsen burner is extremely dangerous as it can easily ignite the flammable substance, leading to fires or explosions. So the statement is false.

Unused chemicals should not be returned to their original containers as this can contaminate the stock. They should be disposed of properly or handled according to lab safety protocols. So the statement is false.

Answer:

False

Question 29