AQA AS CHEMISTRY PAPER 1 INORGANIC AND PHYSICAL
CHEMISTRY QUESTION PAPER 2021
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Sheet, provided as an insert (enclosed)
a ruler with millimetre measurements Question Mark
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions 3
Use black ink or black ball-point pen.
4
Fill in the boxes at the top of this page.
Answer all questions. 5
You must answer the questions in the spaces provided. Do not 6
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
8
the end of this book. Write the question number against your
answer(s). 9
All working must be shown. 10
Do all rough work in this book. Cross through any work
Section
you do not want to be marked. B
TOTAL
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN217404101*
IB/M/Jun21/
E7
7404/1
, 2
Do not write
outside the
Section A box
Answer all questions in this
section.
0 1 This question is about atomic structure.
0 1 .1 Figure 1 is a model proposed by Rutherford to show the structure of an
atom.
Figure 1
State two features of the current model that are not shown in the Rutherford
model.
[2 marks]
Feature 1 of the current model
Feature 2 of the current model
*02
IB/M/
* Jun21/7404/1
, 3
Do not write
outside the
0 .1 2A sample of tin is analysed in a time of flight mass spectrometer. box
The sample is ionised by electron impact to form 1+ ions.
Table 1 shows data about the four peaks in this spectrum.
Table 1
m/z Percentage abundance
11 22.41
2
11 11.78
4
11 34.97
7
12 To be determined
0
Give the symbol, including mass number, of the ion that reaches the
detector first.
Calculate the relative atomic mass of tin in this
sample. Give your answer to 1 decimal place.
[4 marks]
Symbol of ion
Relative atomic mass
*03
IB/M/
* Jun21/7404/1
, 4
Do 6
not write
outside the
Turn over ►
*03
IB/M/
* Jun21/7404/1
CHEMISTRY QUESTION PAPER 2021
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
AS
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Sheet, provided as an insert (enclosed)
a ruler with millimetre measurements Question Mark
a scientific calculator, which you are expected to use where appropriate. 1
2
Instructions 3
Use black ink or black ball-point pen.
4
Fill in the boxes at the top of this page.
Answer all questions. 5
You must answer the questions in the spaces provided. Do not 6
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
8
the end of this book. Write the question number against your
answer(s). 9
All working must be shown. 10
Do all rough work in this book. Cross through any work
Section
you do not want to be marked. B
TOTAL
Information
The marks for questions are shown in brackets.
The maximum mark for this paper is 80.
Advice
You are advised to spend about 65 minutes on Section A and 25 minutes on Section B.
*JUN217404101*
IB/M/Jun21/
E7
7404/1
, 2
Do not write
outside the
Section A box
Answer all questions in this
section.
0 1 This question is about atomic structure.
0 1 .1 Figure 1 is a model proposed by Rutherford to show the structure of an
atom.
Figure 1
State two features of the current model that are not shown in the Rutherford
model.
[2 marks]
Feature 1 of the current model
Feature 2 of the current model
*02
IB/M/
* Jun21/7404/1
, 3
Do not write
outside the
0 .1 2A sample of tin is analysed in a time of flight mass spectrometer. box
The sample is ionised by electron impact to form 1+ ions.
Table 1 shows data about the four peaks in this spectrum.
Table 1
m/z Percentage abundance
11 22.41
2
11 11.78
4
11 34.97
7
12 To be determined
0
Give the symbol, including mass number, of the ion that reaches the
detector first.
Calculate the relative atomic mass of tin in this
sample. Give your answer to 1 decimal place.
[4 marks]
Symbol of ion
Relative atomic mass
*03
IB/M/
* Jun21/7404/1
, 4
Do 6
not write
outside the
Turn over ►
*03
IB/M/
* Jun21/7404/1
