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प्रश्न
Explain the conversion of nitrogen into nitrates during lightning.
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उत्तर
During lightning, temperatures often reach as high as 3000°C. At such high temperatures, nitrogen and oxygen present in the air combine to form nitric oxide, which further react with oxygen to form nitrogen dioxide
\[\ce{N2 + O2 ->[electric] 2NO}\]
Oxygen constitutes about 21% of air by volume. It is the active part of air.
\[\ce{2NO + O2 ->[discharge] 2NO2}\]
Nitrogen dioxide then reacts with the water vapour present in air to form nitrous and nitric acids.
\[\ce{2NO2 + H2O -> HNO2 + HNO3}\]
Oxygen constitutes about“21% of air by volume. It is the active part of air.
Nitric acid, so formed, reaches the earth along with rain-water, and reacts with metal carbonates to form metal nitrates.
\[\ce{CaCO3 + 2HNO3 -> CA(NO3)2 + H2O + CO2}\]
Oxygen constitutes about 21% of air by volume. It is the active part of air.
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संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
The area where a lot of fuel burns has more percentage of carbon dioxide.
Name the following:
The main, rare (inert) gas present in air.
Why is air considered as a mixture?
List uses of oxygen.
List out the uses of carbon dioxide.
What is the composition of air?
All living things use oxygen for breathing.
Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
Tri oxygen molecule is known as ______.
______ exists in nature as silicates, carbonates, oxides, and water. It also exists in a free state as part of the air in the atmosphere.
