Why can acid rain damage marble?
Answer and explanation
Correct answer: Marble contains calcium carbonate
The governing concept is the reaction between acids and carbonates. Marble is mainly calcium carbonate, CaCO3. Acids in rain react with this carbonate, producing salts, water, and carbon dioxide; the surface can gradually dissolve, lose polish, and become damaged. Therefore option A gives the relevant reason. Marble is not pure sodium or sugar, and acid rain is acidic rather than basic, so B, C, and D are incorrect.
Frequently asked questions
What is the correct answer to this question?
Marble contains calcium carbonate
Why is this the correct answer?
The governing concept is the reaction between acids and carbonates. Marble is mainly calcium carbonate, CaCO3. Acids in rain react with this carbonate, producing salts, water, and carbon dioxide; the surface can gradually dissolve, lose polish, and become damaged. Therefore option A gives the relevant reason. Marble is not pure sodium or sugar, and acid rain is acidic rather than basic, so B, C, and D are incorrect.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
