Quiz time/ 02

Choose the correct answer.

1) Who's responsibility is it to be aware of chemical hazards?

a) the student, but only after being informed by a professor
b) only the professor
c) anyone involved in work in a laboratory

2) Material to be disposed of in the laboratory

a) must always be diluted copiously with water first
b) must always be handled in accordance with safety guidelines specific to that class of compound
c) must always be neutralized first

3)What is distillation?

a) Distillation is when material is heated to melting and then separated.
b) Distillation is when a substance is dissolved, heated, and then precipitated.
c) Distillation is when a liquid is evaporated and then recondensed in another container.

1) c
Anyone involved in work in a laboratory should be aware of chemical hazards.

2) B
Material to be disposed of in the laboratory must always be handled in accordance with safety guidelines specific to that class of compound.

3) C
Distillation is when a liquid is evaporated and then recondensed in another container.

my answer is the same to Ravindee's answers

1. C = Anyone involved in work in a laboratory should be aware of chemical hazards.

2. B = Material to be disposed of in the laboratory must always be handled in accordance with safety guidelines specific to that class of compound.

3. C = Distillation is when a liquid is evaporated and then recondensed in another container.

1. C
2. B
3. C