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Pearson Edexcel GCE In Chemistry (9CH0) Paper 02: Advanced Organic and Physical Chemistry summer 2023 marking scheme £13.53
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Pearson Edexcel GCE In Chemistry (9CH0) Paper 02: Advanced Organic and Physical Chemistry summer 2023 marking scheme

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Pearson Edexcel GCE In Chemistry (9CH0) Paper 02: Advanced Organic and Physical Chemistry summer 2023 marking scheme

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  • September 15, 2023
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  • 2023/2024
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Pearson
Edexcel
Mark Scheme (Results)


Summer 2023


Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 02: Advanced Organic and Physical
Chemistry




Page 1

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Page 2

,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




Page 3

, Using the Mark Scheme

Examiners should look for qualities to reward rather than faults to penalise. This does NOT mean giving credit for incorrect or
inadequate answers, but it does mean allowing candidates to be rewarded for answers showing correct application of principles and
knowledge. Examiners should therefore read carefully and consider every response: even if it is not what is expected it may be
worthy of credit.

The mark scheme gives examiners:
 an idea of the types of response expected
 how individual marks are to be awarded
 the total mark for each question
 examples of responses that should NOT receive credit.

/ means that the responses are alternatives and either answer should receive full credit.
( ) means that a phrase/word is not essential for the award of the mark, but helps the examiner to get the sense of the expected
answer.
Phrases/words in bold indicate that the meaning of the phrase or the actual word is essential to the answer.
ecf/TE/cq (error carried forward) means that a wrong answer given in an earlier part of a question is used correctly in answer to a
later part of the same question.

Candidates must make their meaning clear to the examiner to gain the mark. Make sure that the answer makes sense. Do not give
credit for correct words/phrases which are put together in a meaningless manner. Answers must be in the correct context.

Quality of Written Communication
Questions which involve the writing of continuous prose will expect candidates to:
 write legibly, with accurate use of spelling, grammar and punctuation in order to make the meaning clear
 select and use a form and style of writing appropriate to purpose and to complex subject matter
 organise information clearly and coherently, using specialist vocabulary when appropriate.
Full marks will be awarded if the candidate has demonstrated the above abilities.
Questions where QWC is likely to be particularly important are indicated (QWC) in the mark scheme, but this does not preclude
others.




Page 4

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