CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Write the reactions of SO2 and oxides of nitrogen which leads to acid rain formation?

Open in App
Solution

In general, the pH value of rainwater is 5.6. If the pH value of rainwater is below 5.6, it is called acid rain. This acid rain is caused by gases like sulphur dioxide and oxides of nitrogen present in the atmosphere.

Sulphur dioxide and oxygen present in the atmosphere react with each other in presence of sunlight to form sulphur trioxide. This sulphur trioxide dissolves in rainwater and forms sulphuric acid.


SO2 + 12O2 Sunlight SO3SO3 + H2O H2SO4
Oxides of nitrogen present in the atmosphere dissolve in rainwater and form sulphuric acid.

2NO + O2 2NO23NO2+ H2O 2HNO3 + NO

These acids then pour down on the earth's surface in the form of acid rain.


flag
Suggest Corrections
thumbs-up
0
BNAT
mid-banner-image