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The marble statue often slowly correded when kept in open for a long time. Assign a suitable explanation. |
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Answer» Solution : `SO_(2), NO_(2)` gases are RELEASED into the atmosphere from various sources. These dissolve in rain water to give acid which CORRODE marble status. `2SO_(2)+O_(2) to 2SO_(3),H_(2)O+SO_(3) to H_(2)SO_(4)` `2NO_(2)+H_(2)O to 2HNO_(3)` `CaCO_(3)+H_(2)SO_(4) to CaSO_(4)+H_(2)O+CO_(2)` `CaCO_(3)+2HNO_(3) to Ca(NO_(3))_(2)+H_(2)O+CO_(2)` |
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