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.
Advertisements
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.
APPEARS IN
RELATED QUESTIONS
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Reduction is a chemical reaction in which there is
- removal of hydrogen
- removal of oxygen
- addition of oxygen
- none of these
TRUE \ FALSE
The evolution of a gas during a chemical reaction is shown by an arrow pointing downwards. True or false ?
Give an example of the following chemical change.
A reaction where colour change is noticed
Give reason for the following:
Colourless concentrated sulphuric acid in a test tube changes to blue on adding a small piece of copper to it.
What do you observe? When
Barium chloride is added to sodium sulphate solution
Complete and balance the following reaction:
\[\ce{Pb(NO3)2 ->[\Delta]}\]
What is observed in performing the following :
| Hydrogen | Oxygen | Carbon dioxide | Chlorine | |
| Litmus test | ||||
| Apply a burning splint to the gas | ||||
| Colour of gas | colourless | colourless | colourless | greenish-yellow |
| Odour of gas |
State the original colour of the following substance and colour of residue obtained after heating.
Copper carbonate
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper carbonate to copper oxide
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
