Coal and Petroleum (Key Concept Guide)

86 key revision blocks

⚡ Essential Formula / LawCore Syllabus Rule

Fossil Fuels: Inexhaustible vs Exhaustible | Carbonisation: Slow conversion of dead vegetation into coal

🎯 High-Yield Syllabus Checkpoints

1Destructive distillation of coal produces Coal Gas, Coal Tar, and solid Coke (almost pure carbon).
2Fractional distillation of petroleum yields Petroleum Gas (LPG), Petrol, Kerosene, Diesel, Lubricating Oil, and Bitumen (for surfacing roads).
3PCRA guidelines for saving fuel while driving.

⚠️ Common Student Pitfall

Writing that coal tar is used to surface roads (modern roads use bitumen, a petroleum refining byproduct).

⚠️ Common Student Pitfall

Calling fossil fuels renewable resources.

Carbonisation

The slow natural biochemical and geological conversion of dead vegetation into coal under extreme heat and pressure over millions of years.

Spaced Repetition Protocol:

Day 1Day 3Day 7Day 21