IP Chemistry Upper Sec 11: Organic Chemistry
In one line
Fuels, crude oil, alkanes/alkenes, alcohols/acids/esters, and polymers for IP Sec 3-4 Chemistry (O-Level 6092, 2026).
Last updated 30 Nov 2025
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- Start Here
- What you must know
- Detailed notes
- Worked walkthroughs
These notes align with SEAB GCE O-Level Chemistry (6092) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Chemistry 6092 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for this note.
Start Here
| Read time | What to take away |
| 1 second | Organic chemistry is pattern recognition by functional group. |
| 10 seconds | Identify the homologous series, then recall its general formula, key reaction type, test, and conditions. Alkanes substitute; alkenes add. |
| 100 seconds | Example: bromine water decolourises with an alkene without ultraviolet light because bromine adds across the carbon-carbon double bond. |
What you must know
- Fuels/crude oil: finite resource; separated by fractional distillation into refinery gas, gasoline, kerosene, diesel, fuel oil, bitumen. Pollution issues (CO, SO₂, NOₓ, unburnt hydrocarbons, particulates) and catalytic converters. Biofuels as partial alternative.
- Homologous series: same general formula, similar chemical properties, gradation of physical properties, differ by
