Question

Taj Mahal marble is affected by

• A. $S{O}_2$
• B. $N_2$
• C. $C{O}_2$
• D. $O_3$

Answer 1

The correct option is A $S{O}_2$

Sulfur dioxide emitted by factories near the monument and exhaust from trucks and buses are slowly corroding the Taj Mahal's soft marble. $S{O}_2$ produces sulfurous and sulfuric acids with water. Sulfuric acid reacts with marble to produce calcium sulphate which is soluble in water, hence marble dissolves and erodes. Hence, the correct answer is option (a).