Answer the following questions:
Q.1) What is Rusting?
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Q.2)What is the chemical name of reddish
brown coating?
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Q.3)What is the necessary condition of
rusting?
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Q.4)How we can prevent Rusting?
Q.5)What is air pollution?
Q.6)What is air pollutants?
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Q.7) What are the Causes of Air Pollution?
Q.8)What are the effect of Air Pollution?
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Q.9)What methods is used for reducing air pollution?
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Notes- Answer all questions (^_^)/
Answers
Answer:
1. Rust is a coating that occurs on the surface of iron as it oxidizes.
2. Iron oxide is generally reddish brown in colour.
3. Rusting of iron takes place in the presence of moisture and air.
4. Rusting of iron can be prevented by applying grease or oil.
5. Air pollution is a mixture of solid particles and gases in the air.
6. An air pollutant is a material in the air that can have adverse effects on humans and the ecosystem.
7. The various sources of air pollution are:
- Smoke emitted from homes by the burning of fuels like wood, cow-dung cakes, kerosene and coal.
- Exhaust gases emitted by motor vehicles (automobiles) due to burning of petrol and diesel. ...
- Smoke emitted by factories and thermal power plants due to burning of coal.
8. Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases such as emphysema.
9. On Days when High Ozone Levels are Expected, Take these Extra Steps to Reduce Pollution: Choose a cleaner commute - share a ride to work or use public transportation. Combine errands and reduce trips. Walk to errands when possible.
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Answer:
Rusting: Slow conversion of iron into its hydrated oxide in the presence of moisture and air is called rusting.
Conditions for rusting:
1. Presence of moisture (water).
2. Presence of oxygen (air).
Chemical name of rust is hydrated iron oxide.
first answer