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Y8 - topic 1 - lesson 5 (chromatography)

Authored by C Spinks

Chemistry

7th - 8th Grade

Used 4+ times

Y8 - topic 1 - lesson 5 (chromatography)
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6 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

What is the name of the technique that can be used to separate a mixture of coloured substances?

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chromatography is........

a way of separating different liquids from each other.

a way of separating different coloured substances from each other.

a way to separate a liquid from a solid which doesn’t dissolve.

a special way to draw a graph.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chromatography will only work if......

a lot of each chemical is used.

the special paper has been warmed before it is used.

the special paper is moved during the experiment.

the chemicals to be separated dissolve in the solvent used.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a coloured substances travels a long way through the paper during chromatography this means that.......

it is very soluble in the solvent

it is very warm

it is not very soluble in the solvent

it is very cold

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a coloured substances moves very little through the paper during chromatography this means that.......

it is very soluble in the solvent

it is very warm

it is not very soluble in the solvent

it is very cold

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

During chromatography, the ______________ travels through the paper taking the coloured substances with it.

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