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» Quiz Time/1
Sun Nov 22, 2015 10:24 pm by mithu04

» Quiz Time/1
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» Quiz time/2
Sun Nov 22, 2015 10:08 pm by mithu04

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» Quiz time/ 05
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» Quiz time/ 04
Sun Nov 22, 2015 9:59 pm by mithu04

» Quiz time/ 03
Sun Nov 22, 2015 9:58 pm by mithu04

» Quiz time/ 02
Sun Nov 22, 2015 9:56 pm by mithu04

» Quiz time/ 01
Sun Nov 22, 2015 9:55 pm by mithu04


Quiz time/ 02

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Quiz time/ 02

Post by Admin on Fri Sep 25, 2015 4:41 pm

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.

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Re: Quiz time/ 02

Post by Ravindee on Fri Sep 25, 2015 7:26 pm

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.
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Re: Quiz time/ 02

Post by DrIGPRKulanatha on Sun Sep 27, 2015 5:37 am

my answer is the same to Ravindee's answers

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Re: Quiz time/ 02

Post by amy05june on Wed Oct 21, 2015 9:27 am

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.

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Re: Quiz time/ 02

Post by mithu04 on Sun Nov 22, 2015 9:56 pm

1. C
2. B
3. C

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Re: Quiz time/ 02

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