Question

Statues made up of marble which is chemically calcium carbonate get slowly eaten up or corroded by the acids like sulphuric acid and nitric acid dissolved in rain water. The chemical reaction involved in the process is:

Answer 1

Answer:

Acid precipitation affects stone primarily in two ways: dissolution and alteration. When sulfurous, sulfuric, and nitric acids in polluted air 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. Stone surface material may be lost all over or only in spots that are more reactive.