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Class 10ScienceChemical Substances – Nature and BehaviourAcids, Bases, and SaltsMedium
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The effect of acid rain on marble is due to which reaction?

Answer and explanation

Correct answer: Acid reacts with calcium carbonate

Marble is mainly calcium carbonate, CaCO₃. The governing concept is the reaction of an acid with a carbonate: acid + carbonate produces a salt, water, and carbon dioxide. Acid rain contains acids that slowly attack the carbonate surface, causing effervescence or dissolution and erosion of monuments. Therefore option A is correct; the other choices do not describe the relevant reaction or even a valid chemical process.

Related tags

Acid RainMarbleCalcium CarbonateAcid-Carbonate ReactionAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour
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10 more MCQs
  1. 1What type of substance turns blue litmus paper red?
  2. 2What type of substance turns red litmus paper blue?
  3. 3Which of the following substances acts as a natural indicator?
  4. 4What is the general nature of an aqueous soap solution?
  5. 5Which of the following substances turns red litmus paper blue?
  6. 6What is the nature of a solution whose pH is less than 7?
  7. 7At 25°C, a solution with a pH greater than 7 is of which nature?
  8. 8A student dips red litmus paper into a soap solution. What change will occur in the red litmus paper?
  9. 9Which gas is generally produced when dilute acids react with active metals?
  10. 10A student dips red litmus paper into a soap solution. What will be the colour of the litmus paper?
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