AQA 2022
A-Level Chemistry
AQA
Paper 3
Predicted Paper 2022
Name ………………
Date …………………
2 hours allowed
You should spend around 70 minutes on section A and 50 minutes on section
B.
Possible Marks
Question
marks gained
1 7
2 15
3 13
4 14
5 11
Section B 30
Total 90
The Advanced Information from the exam board gives us a broad overview of
what is covered in the exam. The information was given in ranked order, and
this has been reflected in the mark allocation and topics on this paper.
There are questions in this paper that cover topics that are not listed by the
exam board. These are in the multiple-choice section and a few marks in low
tariff and synoptic questions – this is exactly what you should expect in the
exam.
PREDICTED PAPER 2022
, AQA 2022
Section A
01 X is a metallic element.
An electrochemical cell was set up consisting of an X 2+(aq)|X(s) half-cell
(Eø= 0.34 V) and an Ag+(aq)|Ag(s) half cell (Eø= +0.80V).
I. Write an equation for the reaction that would take place if the
electrode of this cell were connected by a wire.
[1 mark]
………………………………………………………………………………………………………
………………………………………………………………………………………………………
II. When the current was allowed to pass for a period of time, the
Ag electrode gained 1.30 g in mass and the electrode made of
metal X lost 0.38 g in mass.
Identify the metal X.
[4 marks]
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
III. State the charge carriers that transfer current through:
[2 marks]
The solution:
………………………………………………………………………………………………………
………………………………………………………………………………………………………
The wire:
………………………………………………………………………………………………………
………………………………………………………………………………………………………
PREDICTED PAPER 2022
, AQA 2022
02 Consider the following reaction:
02.1
I. Write the IUPAC name of the compound X
[1 mark]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
II. Outline the mechanism for the above reaction.
[3 marks]
III. What type of mechanism occurs in part (II)?
[1 mark]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
PREDICTED PAPER 2022
, AQA 2022
02.2 When trichloromethane reacts with chlorine, the organic product is
tetrachloromethane.
I. Give one essential condition for this reaction and name the type
of mechanism involved.
[2 marks]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
II. The reaction takes place in a series of steps.
Write equations for the following steps in the mechanism for the
reaction of chlorine with trichloromethane.
[4 marks]
Initial step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
First propagation step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
Second propagation step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
Termination step producing tetrachloromethane:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
PREDICTED PAPER 2022
A-Level Chemistry
AQA
Paper 3
Predicted Paper 2022
Name ………………
Date …………………
2 hours allowed
You should spend around 70 minutes on section A and 50 minutes on section
B.
Possible Marks
Question
marks gained
1 7
2 15
3 13
4 14
5 11
Section B 30
Total 90
The Advanced Information from the exam board gives us a broad overview of
what is covered in the exam. The information was given in ranked order, and
this has been reflected in the mark allocation and topics on this paper.
There are questions in this paper that cover topics that are not listed by the
exam board. These are in the multiple-choice section and a few marks in low
tariff and synoptic questions – this is exactly what you should expect in the
exam.
PREDICTED PAPER 2022
, AQA 2022
Section A
01 X is a metallic element.
An electrochemical cell was set up consisting of an X 2+(aq)|X(s) half-cell
(Eø= 0.34 V) and an Ag+(aq)|Ag(s) half cell (Eø= +0.80V).
I. Write an equation for the reaction that would take place if the
electrode of this cell were connected by a wire.
[1 mark]
………………………………………………………………………………………………………
………………………………………………………………………………………………………
II. When the current was allowed to pass for a period of time, the
Ag electrode gained 1.30 g in mass and the electrode made of
metal X lost 0.38 g in mass.
Identify the metal X.
[4 marks]
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
………………………………………………………………………………………………………
III. State the charge carriers that transfer current through:
[2 marks]
The solution:
………………………………………………………………………………………………………
………………………………………………………………………………………………………
The wire:
………………………………………………………………………………………………………
………………………………………………………………………………………………………
PREDICTED PAPER 2022
, AQA 2022
02 Consider the following reaction:
02.1
I. Write the IUPAC name of the compound X
[1 mark]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
II. Outline the mechanism for the above reaction.
[3 marks]
III. What type of mechanism occurs in part (II)?
[1 mark]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
PREDICTED PAPER 2022
, AQA 2022
02.2 When trichloromethane reacts with chlorine, the organic product is
tetrachloromethane.
I. Give one essential condition for this reaction and name the type
of mechanism involved.
[2 marks]
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
II. The reaction takes place in a series of steps.
Write equations for the following steps in the mechanism for the
reaction of chlorine with trichloromethane.
[4 marks]
Initial step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
First propagation step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
Second propagation step:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
Termination step producing tetrachloromethane:
…………………………………………………………………………………………………………
…………………………………………………………………………………………………………
PREDICTED PAPER 2022
