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प्रश्न
State and explain two ways by which air gets polluted in nature.
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उत्तर
Air gets polluted in nature by following ways :
- During forest fire, a large amount of carbon particles (smoke) and carbon-monoxide pollute the air.
- When volcanoes erupt, a huge amount of ash and sulphur-dioxide is added in the air as pollutants.
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संबंधित प्रश्न
State at least two ways of prevent rusting.
State two differences between:
Rusting and burning.
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Write ‘True’ or ‘False’ in front of following statement.
The rust formed on the surface of iron easily crumbles.
What is rusting?
State two most important conditions for rusting.
Oxygen of the air is utilised for ‘combustiop’ and for ‘respiration’. Compare the two with a suitable examples.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Draw a neat labelled diagram for the method used in the above preparation.
Distinguish between:
Combustion and Respiration
Distinguish between:
Combustion & Rusting with suitable word equations only?
