What chemical reason explains the effect of acid rain on marble?
Answer and explanation
Correct answer: Acids react with calcium carbonate
Marble is mainly calcium carbonate, CaCO₃. The governing reaction is acid–carbonate neutralisation: an acid reacts with carbonate to produce a salt, water, and carbon dioxide; for example, CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂. Repeated contact dissolves or erodes the marble surface. Hence option A is correct, while the other statements contradict its composition or the nature of acid rain.
Frequently asked questions
What is the correct answer to this question?
Acids react with calcium carbonate
Why is this the correct answer?
Marble is mainly calcium carbonate, CaCO₃. The governing reaction is acid–carbonate neutralisation: an acid reacts with carbonate to produce a salt, water, and carbon dioxide; for example, CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂. Repeated contact dissolves or erodes the marble surface. Hence option A is correct, while the other statements contradict its composition or the nature of acid rain.
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.
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
