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(a) Name two acids that are usually present in rain water. (b) How these acids affect our hearitage monuments such as Taj Mahal ? |
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Answer» (a) Sulphuric acid `(H_(2)SO_(4))` and Nitric acid `(HNO_(3))` (b) The acids present in acid rain react with marble of Taj Mahal of Agra (U.P.) and corrode it. Chemical reactions involved are: `underset(("Marble")) underset("Calcium carbonate") (CaCO_(3))+underset("Sulphuric acid")(H_(2)SO_(4))to underset("Calcium sulphate")(CaSO_(4))+underset("Carbon dioxide")(CO_(2))+underset("Water")(H_(2)O)` `underset("Marble")(CaCO_(3))+underset("NItric acid")(HNO_(3))to underset("Calcium nitrate")(Ca(NO_(3))_(2))+CO_(2)+H_(2)O` |
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