AQA (9-1) Topic 8

Question 1 of 8

1

Artificial colours can be detected and identified using:

Select one of the following:

Filtration
Paper chromatography
Flame tests
Mass spectrometer

Explanation

Question 2 of 8

1

Fill the blank space to complete the text.

Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

Explanation

Question 3 of 8

1

Select from the dropdown lists to complete the text.

There are four gases you need to know how to test. Select the correct gas, and fill the blanks for the tests below.

( Hydrogen, Oxygen, Carbon dioxide, Chlorine ) can be tested by placing ( a lighted splint, a glowing splint ) over the end of a test tube, and hearing a 'squeaky pop'.

( Oxygen, Hydrogen, Carbon dioxide, Chlorine ) can be tested by placing a ( glowing splint, lighted splint ) over the end of a test tube, and seeing it relight.

( Carbon dioxide, Oxygen, Hydrogen, Chlorine ) can be tested by bubbling the gas through limewater, and seeing it turn cloudy.

( Chlorine, Oxygen, Hydrogen, Carbon dioxide ) can be tested for by holding ( damp blue, dry blue, damp red, dry red ) litmus paper over the end of a test tube, and seeing it turn ( red, then white, blue, then white ).

Explanation

Question 4 of 8

1

Fill the blank spaces to complete the text.

Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

Explanation

Question 5 of 8

1

Select from the dropdown list to complete the text.

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.

Explanation

Question 6 of 8

1

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

Drag and drop to complete the text.

at specific

over a range of

pure

impure

lower

higher

Explanation

Question 7 of 8

1

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Select one of the following:

True
False

Explanation

Question 8 of 8

1

GCSE Chemistry (AQA) Quiz on AQA (9-1) Topic 8, created by https:// revisechemistry.uk on 06/03/2018.

AQA (9-1) Topic 8

AQA (9-1) Topic 8

Question 1 of 8

Artificial colours can be detected and identified using:

Select one of the following:

Explanation

Question 2 of 8

Fill the blank space to complete the text.

Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

Explanation

Question 3 of 8

Select from the dropdown lists to complete the text.

Explanation

Question 4 of 8

Fill the blank spaces to complete the text.

Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

Explanation

Question 5 of 8

Select from the dropdown list to complete the text.

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.

Explanation

Question 6 of 8

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

Drag and drop to complete the text.

Explanation

Question 7 of 8

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Select one of the following:

Explanation

Question 8 of 8

Fill the blank space to complete the text.

If the red spot moved 7 cm, and the solvent moved 9 cm, then what is the Rf value of the red spot? (give answer to 2 d.p.)

Explanation

	Created by https:// revisechemistry.uk about 6 years ago

GCSE Chemistry (AQA) Quiz on AQA (9-1) Topic 8, created by https:// revisechemistry.uk on 06/03/2018.

AQA (9-1) Topic 8

AQA (9-1) Topic 8

Question 1 of 8

Artificial colours can be detected and identified using:

Select one of the following:

Explanation

Question 2 of 8

Fill the blank space to complete the text.

Paper chromatography works because some of the coloured substances are better at dissolving in the liquid than they are at bonding with the paper, so they travel further the paper.

Explanation

Question 3 of 8

Select from the dropdown lists to complete the text.

Explanation

Question 4 of 8

Fill the blank spaces to complete the text.

Paper chromatography consists of two stages: the phase (a.k.a. the phase that doesn't move - this is the ) the phase (a.k.a. the phase that moves - this is the )

Explanation

Question 5 of 8

Select from the dropdown list to complete the text.

A formulation is a mixture compound element( mixture, compound, element ) that has been designed as a useful product.

Explanation

Question 6 of 8

Pure substances will melt and boil ❌ temperatures, so we can use the temperature that a substance melts/boils at to tell how ❌ it is. Impure substances will melt ❌ temperatures. If a substance is ❌ it will generally also have a ❌ melting point and a ❌ boiling point.

Drag and drop to complete the text.

Explanation

Question 7 of 8

A pure substance is either a single element, or compound, that is not mixed with any other substance.

Select one of the following:

Explanation

Question 8 of 8

Fill the blank space to complete the text.

If the red spot moved 7 cm, and the solvent moved 9 cm, then what is the Rf value of the red spot? (give answer to 2 d.p.)

Explanation

Paper chromatography consists of two stages:
the phase (a.k.a. the phase that doesn't move - this is the )
the phase (a.k.a. the phase that moves - this is the )

A formulation is a ( mixture, compound, element ) that has been designed as a useful product.