Advertisements
Advertisements
Question
Collect information about the types of fuels used for cooking in your area. Discuss with your teachers/parents/others which fuels are less polluting and why.
Solution
Types of Fuels Used for Cooking in My Area:
- Liquefied Petroleum Gas (LPG)
- Natural Gas
- Electricity
- Biogas
- Kerosene
- Firewood
Discussion on Less Polluting Fuels:
- LPG and Natural Gas burn cleanly, producing fewer particulates, carbon monoxide, and other pollutants than solid fuels like firewood and coal.
- Electricity: When generated from renewable sources (e.g., solar, wind), it is the least polluting option. However, if the electricity comes from coal or other fossil fuels, pollution is shifted to the power plant.
- Biogas: Renewable and environmentally friendly, biogas produces significantly less smoke and pollutants compared to traditional biomass fuels.
Conclusion: LPG, natural gas, and biogas are less polluting options compared to kerosene and firewood. They emit fewer harmful substances and contribute less to indoor air pollution. Using cleaner fuels and renewable energy sources can significantly reduce pollution and improve health outcomes.
RELATED QUESTIONS
Define; catalyst.
What are biocatalysts ?
| Reactants | Products | Type of chemical reaction |
| BaCl2(aq) + ZnSO4(aq) | H2CO3(aq) | Displacement |
| 2AgCl(s) | FeSO4(aq) + Cu(s) | Combination |
| CuSO4(aq) + Fe(s) | BaSO4↓ + ZnCl2(aq) | Decomposition |
| H2O(l) + CO2(g) | 2Ag(s) + Cl2(g) | Double displacement |
Define the following terms
Precipitate
Give an example of a reaction where the following are involved
Pressure
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
Write your observation and a balanced equation in the case of the following substances being heated.
Copper carbonate.
Give a word equation for the following reaction.
Two gases which combine to give a solid.
Water boiling into water vapour is an example of chemical change.
______ is a natural indicator.
