H2 Chemistry Notes: Topic 11 — Organic Chemistry
12 Feb 2025, 00:00 Z
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Q: What does H2 Chemistry Notes: Topic 11 - Organic Chemistry cover?
A: Map the 2026 H2 Organic Chemistry toolkit: functional groups, stereochemistry, reaction mechanisms, synthetic planning, and spectroscopy interpretation.
Organic chemistry commands significant weight in Paper 3; questions interleave mechanisms, spectroscopy, and synthesis.
This guide structures the knowledge for the 2026 syllabus, with cross-references to practice drills at https://eclatinstitute.sg/blog/h2-chemistry-notes.
Status: SEAB H2 Chemistry (9476, first exam 2026) syllabus and Chemistry Data Booklet last checked 2026-01-13.
Quick revision box
- What this topic tests: Functional groups, mechanisms, synthesis planning, and spectroscopy integration.
- Top mistakes to avoid: Memorising reactions without mechanism logic; incomplete reagents/conditions; weak spectra-to-structure links.
- 20-minute sprint plan: 5 min mechanism map; 10 min synthesis pathway drill; 5 min spectra assignment checks.
1 Functional Group Map
| Family | Key reactions | Notes |
| Alkanes | Radical substitution (halogenation), combustion. | Initiation-propagation-termination steps. |
| Alkenes | Electrophilic addition (, |
