Question of 20
Q.Which oxides cause acid rain?
Telangana TsbieTelangana Board of Intermediate Education (Intermediate 1st Year) 2019Subjective· 2mImportance★★★★★
0% · 0/20 Questions
You're viewing a preview — the full solution, concept, methods & PYQ mapping are locked.
Start your 14-day free trial to unlock the full solution →Oxides of sulphur (SO2, SO3) and oxides of nitrogen (NO, NO2) cause acid rain by forming H2SO4 and HNO3 in rain water.
Acid rain refers to rain water whose pH has fallen below the normal value (about 5.6) because it contains dissolved acids.
The pollutant gases responsible are:
- Oxides of sulphur: SO2 and SO3, produced mainly by the burning of sulphur-containing fossil fuels (coal, petroleum) and by smelting of metal sulphide ores.
- Oxides of nitrogen: NO and NO2, produced during combustion at high temperatures (in vehicle engines and power plants).
In the atmosphere these oxides react with water vapour and oxygen:
SO2 + H2O -> H2SO3; 2SO2 + O2 -> 2SO3; SO3 + H2O -> H2SO4 …
Unlock everything free for 14 days
- Full step-by-step solutions
- Concept-first explanations
- Methods, shortcuts & mistakes
- PYQ mapping + timed mock tests
Full access for 14 days. No credit card required.