AQA 8: Chemical analysis

AQA 8: Chemical analysis

10th Grade

17 Qs

quiz-placeholder

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AQA 8: Chemical analysis

AQA 8: Chemical analysis

Assessment

Quiz

Chemistry

10th Grade

Easy

Created by

Chris Hawkins

Used 11+ times

FREE Resource

17 questions

Show all answers

1.

DRAG AND DROP QUESTION

1 min • 1 pt

A substance is ​ (a)   if it is made up of a single element or compound, not ​ (b)   with any other substance. The word 'pure' is also used in an unscientific way to mean ​ (c)   .

The way to test for purity is by measuring ​ (d)   or boiling points, as mixtures ​ (e)   at different temperatures to pure substances.

chemically pure
mixed
unadulterated
melting
change state
safe
evaporation
react
physically perfect

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In chromatography, the stationary phase is normally:

The solvent

The paper

The ink

The beaker

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

A formulation is a designed mixture with a specific 'recipe' of components and ratios.

Which of these are examples of formulations?

Fuel, such as E10 petrol

Medicine such as aspirin

Alloy such as brass

Fertiliser such as rose food

Cleaning agent such as Dettol

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In chromatography, the mobile phase is normally:

The solvent

The paper

The ink

The beaker

5.

DRAG AND DROP QUESTION

1 min • 1 pt

In chromatography, the component that will move furthest is the one that is ​ (a)   in the mobile phase. An ​ (b)   substance will not move.

most soluble
insoluble
most reactive
heaviest
lightest
inert
unreactive

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The definition of Rf value in chromatography is;

Distance moved by solvent / distance moved by substance

Distance moved by substance / distance moved by solvent

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a flame test, the colours of five metal ions is:

Li - red

Na - yellow

K - lilac

Ca - orange-red

Cu - blue-green

Li - orange

Na - yellow

K - lilac

Ca - orange-red

Cu - bright green

Li - red

Na - blue

K - lilac

Ca - dark red

Cu - blue-green

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