AQA
Please write clearly in block capitals.
Centre number Candidate
number
Surname
Forename(s)
Candidatere
signatu
I declare this is my own
work.
A-level
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Monday 12 June 2023 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed)
a ruler with millimetre measurements Questio Mark
n
a scientific calculator, which you are expected to use where appropriate.
1
Instructions 2
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions.
5
You must answer the questions in the spaces provided. Do not
write outside the box around each page or on blank pages. 6
If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s).
All working must be shown. 9
Do all rough work in this book. Cross through any work 10
you do not want to be marked.
TOTAL
Information
Chapter: *07*
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
1
,2
Chapter: *07*
, 2
Do not write
outside the
Answer all questions in the spaces box
provided.
This0 question
1 is about complexes of the transition metal chromium.
0 1 .1 State the meaning of the term transition metal
complex. [1 mark]
Cr(PF3)6 is a complex of chromium that contains molecules of PF3
0 1
.2 The electron pair repulsion theory can be used to predict the shape of a PF 3
molecule. Draw the shape of a PF3 molecule.
Include any lone pairs of electrons that influence the shape.
Name the shape.
[2 marks]
Shape
Name of shape
0 1 .3 Suggest why the oxidation state of chromium is zero in Cr(PF3)6
[1 mark]
*02
IB/M/
* Jun23/7405/1
, 3
Do not write
outside the
The compound [Cr(NH3)4Cl2]Cl contains ammonia box
molecules.
0 1 .4 Deduce the oxidation state of chromium in [Cr(NH3)4Cl2]Cl
[1 mark]
0 1 .5 Name the type of bond between N and H in ammonia.
[1 mark]
0 1
.6 The compound [Cr(NH3)4Cl2]Cl contains a complex ion that shows
isomerism. Draw the two isomers of the complex ion.
State the type of isomerism shown.
[3 marks]
Isomer Isomer
1 2
Type of isomerism
0 1 .7 Complete the equation to show the formation of one complex that
contains chromium in its +3 oxidation state.
[1 mark]
CrCl3 + 5 H2O → 10
*03
IB/M/
* Jun23/7405/1
Please write clearly in block capitals.
Centre number Candidate
number
Surname
Forename(s)
Candidatere
signatu
I declare this is my own
work.
A-level
CHEMISTRY
Paper 1 Inorganic and Physical Chemistry
Monday 12 June 2023 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
the Periodic Table/Data Booklet, provided as an insert (enclosed)
a ruler with millimetre measurements Questio Mark
n
a scientific calculator, which you are expected to use where appropriate.
1
Instructions 2
Use black ink or black ball-point pen. 3
Fill in the boxes at the top of this page. 4
Answer all questions.
5
You must answer the questions in the spaces provided. Do not
write outside the box around each page or on blank pages. 6
If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s).
All working must be shown. 9
Do all rough work in this book. Cross through any work 10
you do not want to be marked.
TOTAL
Information
Chapter: *07*
The marks for questions are shown in brackets.
The maximum mark for this paper is 105.
1
,2
Chapter: *07*
, 2
Do not write
outside the
Answer all questions in the spaces box
provided.
This0 question
1 is about complexes of the transition metal chromium.
0 1 .1 State the meaning of the term transition metal
complex. [1 mark]
Cr(PF3)6 is a complex of chromium that contains molecules of PF3
0 1
.2 The electron pair repulsion theory can be used to predict the shape of a PF 3
molecule. Draw the shape of a PF3 molecule.
Include any lone pairs of electrons that influence the shape.
Name the shape.
[2 marks]
Shape
Name of shape
0 1 .3 Suggest why the oxidation state of chromium is zero in Cr(PF3)6
[1 mark]
*02
IB/M/
* Jun23/7405/1
, 3
Do not write
outside the
The compound [Cr(NH3)4Cl2]Cl contains ammonia box
molecules.
0 1 .4 Deduce the oxidation state of chromium in [Cr(NH3)4Cl2]Cl
[1 mark]
0 1 .5 Name the type of bond between N and H in ammonia.
[1 mark]
0 1
.6 The compound [Cr(NH3)4Cl2]Cl contains a complex ion that shows
isomerism. Draw the two isomers of the complex ion.
State the type of isomerism shown.
[3 marks]
Isomer Isomer
1 2
Type of isomerism
0 1 .7 Complete the equation to show the formation of one complex that
contains chromium in its +3 oxidation state.
[1 mark]
CrCl3 + 5 H2O → 10
*03
IB/M/
* Jun23/7405/1
