Question

Normal rainwater is slightly acidic due to the presence of

Answer 1

Hii Friend here is ur answer

Normal" rainfall is slightly acidic because of the presence of dissolved carbonic acid. Carbonic acid is the same as that found in soda pop. The pH of "normal" rain has traditionally been given a value of 5.6.

However scientists now believe that the pH of rain may vary from 5.6 to a low of 4.5 with the average value of 5.0.

Acid rain or acid snow is a direct result of the method that the atmosphere cleans itself. The tiny droplets of water that make up clouds, continuously capture suspended solid particles and gases in the atmosphere. The gases of sulfur oxides and nitrogen oxides are chemically converted into sulfuric and nitric acids.

The non-metal oxide gases react with water to produce acids (ammonia produces a base).

Example:
SO2 + HOH === H2SO3
2 NO2 + HOH === HNO2 + HNO3



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