Practical techniques
Quiz
•
Chemistry, Science
•
8th - 9th Grade
•
Easy
Ngân Nguyễn
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14 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A student was provided with only a thermometer, a stopwatch and a beaker. What could the student measure?
30oC
20 seconds
20.5 ml
24g
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
W
X
Y
Z
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Which of the following is true about chromatography?
baseline is drawn by ink
chromatography is used to separate a mixture of a liquid and a solid
retention time = distance moved by solvent : distance moved by compound
baseline is drawn by a pencil
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the best way to separate a mixture of water and sand?
evaporation
filtration
distillation
condensation
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is necessary to separate a substance from a solution by crystallization?
the solution is colorful
the solution is staturated
the solution is extremely dilute
the temperature is 0oC
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used to separte a mixture of water and ethanol?
crystallisation
simple distillation
fractional distillation
filtration
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Which apparatuses are usually used to measure a liquid volume?
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