Questions
Acid rain appears when
(I) CO2 dissolves in rain water.
(II) Oxides of sulphur dissolve in rain water.
(III) Oxides of nitrogen dissolve in rain water.
(IV) Hydrocarbons dissolve in rain water.
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Correct option is B
SO2 + 12 O2 + H2O ⟶ H2SO42NO2 + 12 O2 + H2O ⟶ 2HNO3Talk to our academic expert!
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In atmosphere, CO2 gas is produced by
(I) Respiration.
(II) Burning of fossil fuels for energy.
(III) Decomposition of CaCO3 for manufacture of cement.
(IV) Volcanic eruption.
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