A ) Coal gas ✅
B ) CNG
C ) Gas
D ) Coal
Explanation:
✅ Coal Gas
Definition:
Coal gas is a fuel gas made by destructive distillation of coal, consisting mainly of hydrogen, methane, and carbon monoxide.
🔹 Main Components of Coal Gas:
- ✅Hydrogen (H₂)✅Methane (CH₄)
- ✅Carbon monoxide (CO)✅Carbon dioxide (CO₂)
- ✅Nitrogen (N₂)✅Small quantities of other hydrocarbons (e.g., ethylene)
🔹 Uses of Coal Gas:
- Used as a fuel for:
- ✅Lighting✅Heating ✅Cooking (historically in homes and industries) ✅Also used in the production of ammonia, methanol, and other chemicals
🔹 By-products of Coal Gas Production:
- ✅Coke✅Coal tar✅Ammonia liquor