AQA Qualifications
AS
Chemistry
Paper 2: Organic and Physical Chemistry
Mark scheme
7404/2
Specimen Paper (set 2)
Version 1.0
, MARK SCHEME – AS Chemistry – 7404/2 – Specimen Paper 2 (set 2)
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the
relevant questions, by a panel of subject teachers. This mark scheme includes any amendments
made at the standardisation events which all associates participate in and is the scheme which was
used by them in this examination. The standardisation process ensures that the mark scheme covers
the students’ responses to questions and that every associate understands and applies it in the same
correct way. As preparation for standardisation each associate analyses a number of students’
scripts: alternative answers not already covered by the mark scheme are discussed and legislated for.
If, after the standardisation process, associates encounter unusual answers which have not been
raised they are required to refer these to the Lead Assessment Writer.
It must be stressed that a mark scheme is a working document, in many cases further developed and
expanded on the basis of students’ reactions to a particular paper. Assumptions about future mark
schemes on the basis of one year’s document should be avoided; whilst the guiding principles of
assessment remain constant, details will change, depending on the content of a particular
examination paper.
Further copies of this Mark Scheme are available from aqa.org.uk
Important - please note
This mark scheme has not been through the full standardisation process. As such,
many of the phases described above have not been completed. The Instructions for
examiners are also included as a guide to how the mark scheme will function as an
operational document. The layout has been kept consistent so that future operational mark
schemes do not appear different to the specimen materials.
, MARK SCHEME – AS Chemistry – 7404/2 – Specimen Paper 2 (set 2)
Copyright © 2016 AQA and its licensors. All rights reserved.
AQA retains the copyright on all its publications. However, registered schools/colleges for AQA are permitted to copy material from this
booklet for their own internal use, with the following important exception: AQA cannot give permission to schools/colleges to photocopy any
material that is acknowledged to a third party even for internal use within the centre.
AS and A-level Chemistry
Mark scheme instructions for examiners
Introduction to marking
Before beginning the standardisation process, you must:
• access the online tutorial
• access all relevant documents on your Examiner Extranet page
• mark a minimum of 10 training clips of each item.
When standardising online, you must review the marking of the standardisation clips and all
comments and annotations made by the Lead Examiner, which exemplify the marking standard. You
must discuss the results of your marking of the standardisation clips with your Team Leader before
you will be cleared to mark live clips.
1. General
The mark scheme for each question shows:
• the marks available for each part of the question
• the total marks available for the question
• the typical answer or answers which are expected
• extra information to help the examiner make his or her judgement and help to delineate what is
acceptable or not worthy of credit or, in discursive answers, to give an overview of the area in
which a mark or marks may be awarded.
The extra information in the ‘Comments’ column is aligned to the appropriate answer in the left-hand
part of the mark scheme and should only be applied to that item in the mark scheme.
You should mark according to the contents of the mark scheme. If you are in any doubt about
applying the mark scheme to a particular response, consult your Team Leader.
At the beginning of a part of a question a reminder may be given, for example: where consequential
marking needs to be considered in a calculation; or the answer may be on the diagram or at a
different place on the script.
In general the right-hand side of the mark scheme is there to provide those extra details which
confuse the main part of the mark scheme yet may be helpful in ensuring that marking is
straightforward and consistent.
The use of M1, M2, M3 etc refers to the marking points in the order in which they appear in the mark
scheme. So, M1 refers to the first marking point, M2 the second marking point etc.
AS
Chemistry
Paper 2: Organic and Physical Chemistry
Mark scheme
7404/2
Specimen Paper (set 2)
Version 1.0
, MARK SCHEME – AS Chemistry – 7404/2 – Specimen Paper 2 (set 2)
Mark schemes are prepared by the Lead Assessment Writer and considered, together with the
relevant questions, by a panel of subject teachers. This mark scheme includes any amendments
made at the standardisation events which all associates participate in and is the scheme which was
used by them in this examination. The standardisation process ensures that the mark scheme covers
the students’ responses to questions and that every associate understands and applies it in the same
correct way. As preparation for standardisation each associate analyses a number of students’
scripts: alternative answers not already covered by the mark scheme are discussed and legislated for.
If, after the standardisation process, associates encounter unusual answers which have not been
raised they are required to refer these to the Lead Assessment Writer.
It must be stressed that a mark scheme is a working document, in many cases further developed and
expanded on the basis of students’ reactions to a particular paper. Assumptions about future mark
schemes on the basis of one year’s document should be avoided; whilst the guiding principles of
assessment remain constant, details will change, depending on the content of a particular
examination paper.
Further copies of this Mark Scheme are available from aqa.org.uk
Important - please note
This mark scheme has not been through the full standardisation process. As such,
many of the phases described above have not been completed. The Instructions for
examiners are also included as a guide to how the mark scheme will function as an
operational document. The layout has been kept consistent so that future operational mark
schemes do not appear different to the specimen materials.
, MARK SCHEME – AS Chemistry – 7404/2 – Specimen Paper 2 (set 2)
Copyright © 2016 AQA and its licensors. All rights reserved.
AQA retains the copyright on all its publications. However, registered schools/colleges for AQA are permitted to copy material from this
booklet for their own internal use, with the following important exception: AQA cannot give permission to schools/colleges to photocopy any
material that is acknowledged to a third party even for internal use within the centre.
AS and A-level Chemistry
Mark scheme instructions for examiners
Introduction to marking
Before beginning the standardisation process, you must:
• access the online tutorial
• access all relevant documents on your Examiner Extranet page
• mark a minimum of 10 training clips of each item.
When standardising online, you must review the marking of the standardisation clips and all
comments and annotations made by the Lead Examiner, which exemplify the marking standard. You
must discuss the results of your marking of the standardisation clips with your Team Leader before
you will be cleared to mark live clips.
1. General
The mark scheme for each question shows:
• the marks available for each part of the question
• the total marks available for the question
• the typical answer or answers which are expected
• extra information to help the examiner make his or her judgement and help to delineate what is
acceptable or not worthy of credit or, in discursive answers, to give an overview of the area in
which a mark or marks may be awarded.
The extra information in the ‘Comments’ column is aligned to the appropriate answer in the left-hand
part of the mark scheme and should only be applied to that item in the mark scheme.
You should mark according to the contents of the mark scheme. If you are in any doubt about
applying the mark scheme to a particular response, consult your Team Leader.
At the beginning of a part of a question a reminder may be given, for example: where consequential
marking needs to be considered in a calculation; or the answer may be on the diagram or at a
different place on the script.
In general the right-hand side of the mark scheme is there to provide those extra details which
confuse the main part of the mark scheme yet may be helpful in ensuring that marking is
straightforward and consistent.
The use of M1, M2, M3 etc refers to the marking points in the order in which they appear in the mark
scheme. So, M1 refers to the first marking point, M2 the second marking point etc.
