Question 2:
c). Why is rainwater considered the purest form of natural water?
Question 2:
c). Why is rainwater considered the purest form of natural water?
Rainwater is a form of atmospheric water that directly comes from the condensation of water in the presence of the sun. And since it does not carry any dissolved chemical salts as impurities in it so, it is considered the purest form of natural water.
In chemistry, pure water refers to an organic water solution that is free of any dissolved salts or gases. Clean drinking water, on the other hand, contains traces of minerals like salt and magnesium, as well as carbonates and dissolved gases like oxygen, as required by the WHO.
In case for rainwater, due to atmospheric temperature, water evaporates from the lakes, rivers and seas in the form of water vapours. All the impurities are removed during the vaporization process, and then waterfalls directly on the earth's surface in the form of rain.
Rainwater is a form of atmospheric water that directly comes from the condensation of water in the presence of the sun. And since it does not carry any dissolved chemical salts as impurities in it so, it is considered the purest form of natural water.
In chemistry, pure water refers to an organic water solution that is free of any dissolved salts or gases. Clean drinking water, on the other hand, contains traces of minerals like salt and magnesium, as well as carbonates and dissolved gases like oxygen, as required by the WHO.
In case for rainwater, due to atmospheric temperature, water evaporates from the lakes, rivers and seas in the form of water vapours. All the impurities are removed during the vaporization process, and then waterfalls directly on the earth's surface in the form of rain.
