define acidic gases. give examples. how its effect can be observed on newly constructed buildings made of marbles?
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acidic gases are nitrogen dioxide,sulfer dioxide,nitrus oxide etc.in the atmosphere sulphur and nitrogen oxides mixed with rain water and make acid rain which detroriate building and in the marble building its changed its pure white colour to the yellow like example is taz mahal
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acid gas is any gaseous compound which, when dissolved in water, will form an acidic solution. and examples is Formic acid, sulfur dioxide, and nitrogen oxides.
When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details.
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