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Class 11
Chemistry
Environmental Chemistry
statues and monuments in india are affected by aci...

Question:
Statues and monuments in India are affected by acid rain. How?

Answer:

Acid rain is caused by various human activities that leads to the emission of oxides of Sulphur and nitrogen in the atmosphere. These oxides undergo oxidation and then react with water vapour to form acids.

2SO₂(g) + O2 (g) + 2H₂O (l) → 2H₂SO4 (aq)

4NO₂ (g) + O2 (g) + 2H₂O (l) → 4HNO₃ (aq)

Acid rain causes damage to buildings and structures made of stone and metal. In India, limestone is a major stone used in the construction of various monuments and statues, including the Taj Mahal.

Acid rain reacts with limestone as:

CaCO₃ + H₂SO₄ → CaSO₄ + H₂O + CO₂

Thus resulting in the loss of luster and colour of monuments, leading to their disintegration.

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Statues and monuments in India are affected by acid rain. How?

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Question:
Statues and monuments in India are affected by acid rain. How?