,Mark Scheme (Results)
November 2021
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 3: General and Practical Principles in
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic, vocational,
occupational and specific programmes for employers. For further information visit our
qualifications websites at www.edexcel.com or www.btec.co.uk for our BTEC
qualifications.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the help
of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You will
need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe in
every kind of learning, for all kinds of people, wherever they are in the world. We’ve
been involved in education for over 150 years, and by working across 70 countries, in
100 languages, we have built an international reputation for our commitment to high
standards and raising achievement through innovation in education. Find out more
about how we can help you and your students at: www.pearson.com/uk
November 2021
Question Paper Log Number 67806
Publications Code 9CH0_03_2111_MS
All the material in this publication is copyright
© Pearson Education Ltd 2021
, General Marking Guidance
All candidates must receive the same treatment. Examiners must mark the
first candidate in exactly the same way as they mark the last.
Mark schemes should be applied positively. Candidates must be rewarded
for what they have shown they can do rather than penalised for omissions.
Examiners should mark according to the mark scheme not according to
their perception of where the grade boundaries may lie.
There is no ceiling on achievement. All marks on the mark scheme should
be used appropriately.
All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if
the candidate’s response is not worthy of credit according to the mark
scheme.
Where some judgement is required, mark schemes will provide the
principles by which marks will be awarded and exemplification may be
limited.
When examiners are in doubt regarding the application of the mark scheme
to a candidate’s response, the team leader must be consulted.
Crossed out work should be marked UNLESS the candidate has replaced it
with an alternative response.
Mark schemes will indicate within the table where, and which strands of
QWC, are being assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are
accurate so that meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to
complex subject matter
iii) organise information clearly and coherently, using specialist vocabulary
when appropriate.
November 2021
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 3: General and Practical Principles in
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic, vocational,
occupational and specific programmes for employers. For further information visit our
qualifications websites at www.edexcel.com or www.btec.co.uk for our BTEC
qualifications.
Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the help
of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You will
need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe in
every kind of learning, for all kinds of people, wherever they are in the world. We’ve
been involved in education for over 150 years, and by working across 70 countries, in
100 languages, we have built an international reputation for our commitment to high
standards and raising achievement through innovation in education. Find out more
about how we can help you and your students at: www.pearson.com/uk
November 2021
Question Paper Log Number 67806
Publications Code 9CH0_03_2111_MS
All the material in this publication is copyright
© Pearson Education Ltd 2021
, General Marking Guidance
All candidates must receive the same treatment. Examiners must mark the
first candidate in exactly the same way as they mark the last.
Mark schemes should be applied positively. Candidates must be rewarded
for what they have shown they can do rather than penalised for omissions.
Examiners should mark according to the mark scheme not according to
their perception of where the grade boundaries may lie.
There is no ceiling on achievement. All marks on the mark scheme should
be used appropriately.
All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if
the candidate’s response is not worthy of credit according to the mark
scheme.
Where some judgement is required, mark schemes will provide the
principles by which marks will be awarded and exemplification may be
limited.
When examiners are in doubt regarding the application of the mark scheme
to a candidate’s response, the team leader must be consulted.
Crossed out work should be marked UNLESS the candidate has replaced it
with an alternative response.
Mark schemes will indicate within the table where, and which strands of
QWC, are being assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are
accurate so that meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to
complex subject matter
iii) organise information clearly and coherently, using specialist vocabulary
when appropriate.
