What is the meaning of 'do not allow' on OCR markschemes?
Does this mean that the entire answer is ignored and marked as wrong, or just the single aspect that contains the error. ie for a 1 mark question, if you had two points, one being correct and the other being a 'do not allow' point, would the entire answer be wrong, or would you still get the mark for the correct aspect. This is for GCSE OCR Gateway A Chemistry btw
Reply 1
Depends if the points are linked, but in general, it's 1 mark
Reply 2
Z_AK15
OP
2
Original post
by isaac123444566Depends if the points are linked, but in general, it's 1 mark
so you would still get the mark then?
Reply 3
Original post
by Z_AK15so you would still get the mark then?
Send the question and mark scheme
Reply 4
Z_AK15
OP
2
Original post
by isaac123444566Send the question and mark scheme
2022 chemistry paper 4, q22 bii. I wrote ' add a few drops of silver nitrate solution acidified with hydrochloric acid'
Reply 5
Original post
by Z_AK152022 chemistry paper 4, q22 bii. I wrote ' add a few drops of silver nitrate solution acidified with hydrochloric acid' 
I'm afraid it scores 0. You haven't said 'white precipitate' for the result (which is 1 mark) and you have essentially said 'add (dilute) hydrochloric acid' which negatives the correct answer of 'silver nitrate' (1-1=0)
Reply 6
Z_AK15
OP
2
Original post
by Reality CheckI'm afraid it scores 0. You haven't said 'white precipitate' for the result (which is 1 mark) and you have essentially said 'add (dilute) hydrochloric acid' which negatives the correct answer of 'silver nitrate' (1-1=0)
oh ok thanks
Quick Reply
Related discussions
- Chem A-Level
- Resitting biology tips
- GCSE Business Study Group | 2025-26
- GCSE Help
- tips for a level paper 1 chem OCR A
- How can I improve OCR exam technique?
- If you mark my alevel ocr biology paper i will pay you 50££
- How should I study/revise
- how strict is AQA biology GCSE with the wording?
- Biology Past Paper 2023
- Grade results without revising
- Just finished biology, chemistry, maths and sport a levels, ask anything!
- OCR A-level biology
- OCR GCSE Mathematics Paper 3 Calculator (Foundation) - June 11, 2025 [Exam Chat]
- Ocr a level biology
- TSR Study Together - STEM vs Humanities with Biology Support!
- media studies A level?
- GCSE Mocks: how do I structure my answer?
- A level biology
- OCR Biology A level predictions for paper 3?
Latest
Trending
Last reply 2 weeks ago
Advice to get basically all 9s in GCSE (ask me anything)Last reply 8 months ago
Any Yr 10s here who think they "failed" their end-of-year mocks?Last reply 9 months ago
How can I achieve as many nines as possible for GCSEs?Last reply 9 months ago
Best revision method to keep science in your head?
How The Student Room is moderated
To keep The Student Room safe for everyone, we moderate posts that are added to the site.
