WCH · Unit 5
WCH15 — Transition Metals and Organic Nitrogen Chemistry
Free mapped visual lessons for WCH15, then mark with Pearson method/accuracy conventions — not a Cambridge default.
Study path
Learn WCH15 with mapped free lessons
MarkScheme's own Cambridge 9701 lessons, mapped onto WCH15 Transition Metals and Organic Nitrogen Chemistry by idea family — not Pearson papers, not scraped notes. Learn the visual, then mark in Edexcel IAL dialect.
- 1. Open a lesson on the live diagram
- 2. Mark WCH15 (Pearson M/A)
- 3. Land back on the same lesson
4 live diagrams · 16 synced steps.
- 6.1Redox processes: electron transfer and changes in oxidation number (oxidation state)Opens on the live diagram with Edexcel WCH15 context — then mark in Pearson dialect.
- 12.1Nitrogen and sulfurOpens on the live diagram with Edexcel WCH15 context — then mark in Pearson dialect.
- 19.1Primary aminesOpens on the live diagram with Edexcel WCH15 context — then mark in Pearson dialect.
- 20.1Addition polymerisationOpens on the live diagram with Edexcel WCH15 context — then mark in Pearson dialect.
Edexcel dialect
After a lesson — mark like Pearson marks
- Write the method line that earns the M mark — not only the final number.
- Keep exact forms until the question asks to approximate.
- Watch dependent accuracy: an early slip can wipe later A marks.
- Self-mark with a WCH15 scheme, then second-pass here.
Marking desk
Mark a WCH15 answer
After a visual lesson — practice answers and scanned scripts with Edexcel IAL Chemistry conventions.
Exam series
Typical IAL sittings for WCH15. Use your own QP/MS from Pearson or your school, then mark a practice answer here.
- January 2025
- June 2025
- October 2025
- January 2024
- June 2024
- October 2024
- January 2023
- June 2023
- October 2023
- January 2022
- June 2022
- October 2022