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OCR A Level Chemistry B paper 2 June 2024 final Mark scheme- H433/02
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OCR A Level Chemistry B paper 2 June 2024 final Mark scheme- H433/02
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Oxford Cambridge and RSA ExaminationsGCE
Chemistry B
H433/02: Scientific literacy in chemistry
A Level
Mark Scheme for June 2024
, H433/02 Mark Scheme June 2024
5. Crossed Out Responses
Where a candidate has crossed out a response and provided a clear alternative then the crossed out response is not marked.
Where no alternative response has been provided, examiners may give candidates the benefit of the doubt and mark the crossed
out response where legible.
Rubric Error Responses – Optional Questions
Where candidates have a choice of question across a whole paper or a whole section and have provided more answers than
required, then all responses are marked and the highest mark allowable within the rubric is given. Enter a mark for each question
answered into RM assessor, which will select the highest mark from those awarded. (The underlying assumption is that the
candidate has penalised themselves by attempting more questions than necessary in the time allowed.)
Multiple Choice Question Responses
When a multiple choice question has only a single, correct response and a candidate provides two responses (even if one of these
responses is correct), then no mark should be awarded (as it is not possible to determine which was the first response selected by
the candidate).
When a question requires candidates to select more than one option/multiple options, then local marking arrangements need to
ensure consistency of approach.
Contradictory Responses
When a candidate provides contradictory responses, then no mark should be awarded, even if one of the answers is correct.
Short Answer Questions (requiring only a list by way of a response, usually worth only one mark per response)
Where candidates are required to provide a set number of short answer responses then only the set number of responses should
be marked. The response space should be marked from left to right on each line and then line by line until the required number of
responses have been considered. The remaining responses should not then be marked. Examiners will have to apply judgement
as to whether a ‘second response’ on a line is a development of the ‘first response’, rather than a separate, discrete response. (The
underlying assumption is that the candidate is attempting to hedge their bets and therefore getting undue benefit rather than
engaging with the question and giving the most relevant/correct responses.)
Short Answer Questions (requiring a more developed response, worth two or more marks)
If the candidates are required to provide a description of, say, three items or factors and four items or factors are provided, then
mark on a similar basis – that is downwards (as it is unlikely in this situation that a candidate will provide more than one response
in each section of the response space.)
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