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प्रश्न
Identify the acidic oxides responsible for acid rain. State how their presence results in formation of acid rain. Give a reason why acid rain damages heritage buildings.
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उत्तर
Basic reactions for products formed in acid rain
- Sulphuric impurities in coal – form pollutant sulphur dioxide [SO2] and sulphur trioxide [SO3]
Sulphur dioxide + water vapour → Sulphurous acid [H2SO3]
Sulphur trioxide + water vapour→ Sulphuric acid [H2SO4] - Nitrogen in air at high temperatures form pollutant nitric oxide [NO] and nitrogen dioxide [NO2]
Nitric oxide + oxygen → nitrogen dioxide [NO2] Nitrogen dioxide + water → Nitrous acid [HNO2] and Nitric acid [HNO3]
Acid rain corrodes metallic surfaces & weakens building materials such as statues, marble, limestone [CaCO3] etc. It causes damage to heritage structures such as the Taj Mahal, which is predominantly made of lime stone and reacts with acids present in acid rain.
APPEARS IN
संबंधित प्रश्न
Define the term acid rain.
The process by which oxidation of food in our body takes place is
Write ‘True’ or ‘False’ in front of following statement.
Nitrogen is a gaseous non-metal essential for respiration.
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Tick (√ ) the most appropriate answer.
Galvanising is the process of coating iron with a layer of molten :
Write fully balanced equation for the following :
MgO + H2O →
State how nitrogen is utilised by plants for their growth. Give a reason why nitrogen is used in flushing food packages.
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
Name the catalyst used in the preparation and state it’s function.
Give reason for the following:
Acid rain has caused damage to heritage structures such as the Taj Mahal.
