The acids present in acid rain are _________. (i) Peroxyacetyl nitrate (ii) H2CO3 (iii) HNO3 (iv) H2SO4

This is a Multiple choice Questions as classified in NCERT Exemplar Options (ii), (iii) and (iv) are correct since rainwater has a pH of 5.6 due to the presence of H+ ions formed by the reaction of rainwater with carbon dioxide present in the atmosphere. The reactions can be shown as- H2O (l)+CO2 (g)→H2CO3 (aq) H2CO3 (aq)→H+ (aq)+HCO3 (aq) If the pH of the rainwater falls below 5.6 then it is known as acid rain. SO2 and NO2 after oxidation and reaction with water are major contributors to the acid rain. 2SO2 (g)+O2 (g)+2H2O (l)→2H2SO4 (aq) 4NO2 (g)+O2 (g)+2H2O (l)→4HNO3− (aq)

The acids present in acid rain are _________.

(i) Peroxyacetyl nitrate

(ii) H₂CO₃

(iii) HNO₃

(iv) H₂SO₄

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Alok Kumar Singh | Contributor-Level 10

9 months ago

This is a Multiple choice Questions as classified in NCERT Exemplar

Options (ii), (iii) and (iv) are correct since rainwater has a pH of 5.6 due to the presence of H+ ions formed by the reaction of rainwater with carbon dioxide present in the atmosphere. The reactions can be shown as-

H₂O (l)+CO₂ (g)