Combined Science A (Gateway) J250
OCR GCSE Combined Science A (Gateway) J250 — C5: Monitoring and Controlling Chemical Reactions topical past papers
62 past-paper questions on C5: Monitoring and Controlling Chemical Reactions for Combined Science A (Gateway) J250.
- Questions
- 62
- Years
- 2018–2024
- With mark scheme
- 100%
- Questions 2020–2024
- 41
Anyone can browse these pages. Opening the questions and their mark schemes takes a free Momentum account.
How C5: Monitoring and Controlling Chemical Reactions has been examined
From 2020 to 2024, C5: Monitoring and Controlling Chemical Reactions was on Paper 10 in 5 of 5 exam series, worth about 25% of that paper’s marks.
| Paper | Questions | Share of marks | Series |
|---|---|---|---|
| Paper 3 | 2 | 5% | 2 of 4 |
| Paper 4 | 17 | 28% | 5 of 5 |
| Paper 9 | 4 | 11% | 2 of 4 |
| Paper 10 | 18 | 25% | 5 of 5 |
Momentum’s own count, over the questions in its bank for these years: a series is one exam session, every zone included, and a question filed under two chapters counts in both. Median marks per question: 4.
Filed in Momentum under: C5: Monitoring and Controlling Chemical Reactions.
Practising in Momentum
- Every question in a chapter as one list, from every paper and year in the bank, newest first or shuffled.
- Each question turns over to its own part of the mark scheme, where the board published one.
- Narrow by paper, year, session, zone and marks, and star the questions worth keeping.
- Pick chapters, a number of questions and a time, and the exam builder draws a mock to sit and mark.
Past-paper questions and mark schemes are the copyright of OCR. Momentum shows them to signed-in learners for revision and does not publish them on these pages.