AQA
a
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
CHEMISTR
Y
H
Higher Tier Paper 2
Wednesday 10 June 2020 Morning Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
a ruler Question Mark
a scientific calculator 1
the periodic table (enclosed).
2
Instructions 3
Use black ink or black ball-point pen. 4
Pencil should only be used for drawing. 5
Fill in the boxes at the top of this page.
6
Answer all questions in the spaces provided. Do not write outside
the box around each page or on blank pages. 7
If you need extra space for your answer(s), use the lined pages at the end 8
of this book. Write the question number against your answer(s). 9
Do all rough work in this book. Cross through any work you do not want
to be marked. 10
In all calculations, show clearly how you work out your answer. TOTAL
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation
in your answers.
*jun20 4622H01* IB/M/Jun20/E12
8462/2H
, 2
Do not
write
0 1 This question is about chemical analysis. outside the
box
A student tested copper sulfate solution and calcium iodide solution using flame tests.
This is the method used.
1. Dip a metal wire in copper sulfate solution.
2. Put the metal wire in a blue Bunsen burner flame.
3. Record the flame colour produced.
4. Repeat steps 1 to 3 using the same metal wire but using calcium iodide solution.
0 1 .1 What flame colour is produced by copper sulfate solution?
[1 mark]
0 1 .2 Calcium compounds produce an orange-red flame colour.
The student left out an important step before reusing the metal wire.
The student’s method did not produce a distinct orange-red flame colour using
calcium iodide solution.
Explain why.
[2 marks]
*02*
IB/M/Jun20/8462/2H
, 3
Do not
write
box the
outside
0 1 .3 The student added sodium hydroxide solution to:
copper sulfate solution
calcium iodide solution.
Give the results of the tests.
[2 marks]
Copper sulfate solution
Calcium iodide solution
0 1 .4 To test for sulfate ions the student added dilute hydrochloric acid to
copper sulfate solution.
Name the solution that would show the presence of sulfate ions when added
to this mixture.
[1 mark]
0 1
.5 To test for iodide ions the student added dilute nitric acid to calcium iodide solution.
Name the solution that would show the presence of iodide ions when added
to this mixture.
Give the result of the test.
[2 marks]
Solution
Result
8
Turn over ►
*03*
IB/M/Jun20/8462/2H
, 4
Do not
write
This0question
2 is about water. box the
outside
0 2 1 . In
the UK,
potable
(drinking)
water is
produced
from
different
sources of
fresh
water.
Expl
ain
how
pota
ble
wate
r is
prod
uce
d
from
fres
h
wate
r.
[4 m
0 2 2 . A
different
country
has:
ve
*04*
IB/M/Jun20/8462/2H
a
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
CHEMISTR
Y
H
Higher Tier Paper 2
Wednesday 10 June 2020 Morning Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
a ruler Question Mark
a scientific calculator 1
the periodic table (enclosed).
2
Instructions 3
Use black ink or black ball-point pen. 4
Pencil should only be used for drawing. 5
Fill in the boxes at the top of this page.
6
Answer all questions in the spaces provided. Do not write outside
the box around each page or on blank pages. 7
If you need extra space for your answer(s), use the lined pages at the end 8
of this book. Write the question number against your answer(s). 9
Do all rough work in this book. Cross through any work you do not want
to be marked. 10
In all calculations, show clearly how you work out your answer. TOTAL
Information
The maximum mark for this paper is 100.
The marks for questions are shown in brackets.
You are expected to use a calculator where appropriate.
You are reminded of the need for good English and clear presentation
in your answers.
*jun20 4622H01* IB/M/Jun20/E12
8462/2H
, 2
Do not
write
0 1 This question is about chemical analysis. outside the
box
A student tested copper sulfate solution and calcium iodide solution using flame tests.
This is the method used.
1. Dip a metal wire in copper sulfate solution.
2. Put the metal wire in a blue Bunsen burner flame.
3. Record the flame colour produced.
4. Repeat steps 1 to 3 using the same metal wire but using calcium iodide solution.
0 1 .1 What flame colour is produced by copper sulfate solution?
[1 mark]
0 1 .2 Calcium compounds produce an orange-red flame colour.
The student left out an important step before reusing the metal wire.
The student’s method did not produce a distinct orange-red flame colour using
calcium iodide solution.
Explain why.
[2 marks]
*02*
IB/M/Jun20/8462/2H
, 3
Do not
write
box the
outside
0 1 .3 The student added sodium hydroxide solution to:
copper sulfate solution
calcium iodide solution.
Give the results of the tests.
[2 marks]
Copper sulfate solution
Calcium iodide solution
0 1 .4 To test for sulfate ions the student added dilute hydrochloric acid to
copper sulfate solution.
Name the solution that would show the presence of sulfate ions when added
to this mixture.
[1 mark]
0 1
.5 To test for iodide ions the student added dilute nitric acid to calcium iodide solution.
Name the solution that would show the presence of iodide ions when added
to this mixture.
Give the result of the test.
[2 marks]
Solution
Result
8
Turn over ►
*03*
IB/M/Jun20/8462/2H
, 4
Do not
write
This0question
2 is about water. box the
outside
0 2 1 . In
the UK,
potable
(drinking)
water is
produced
from
different
sources of
fresh
water.
Expl
ain
how
pota
ble
wate
r is
prod
uce
d
from
fres
h
wate
r.
[4 m
0 2 2 . A
different
country
has:
ve
*04*
IB/M/Jun20/8462/2H
