Advertisements
Advertisements
प्रश्न
Explain the conversion of nitrogen into nitrates during lightning.
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
Write ‘True’ or ‘False’ in front of following statement.
The catalyst used in laboratory preparation of oxygen gas from hydrogen peroxide gas is magnesium oxide
Give reason:
A burning candle stops burning if covered with a glass tumbler
Fill in the blank
The supporter of combustion in air is _____.
Fill in the blank
Green plants need ________________to prepare food.
Why is carbon-dioxide gas used to extinguish fire?
______ is the percentage of nitrogen in air.
Write about the reaction of nitrogen with non metals.
What is the presence of harmful substance in the air called?
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
