1. Salt
  2. Water
  3. Carbon dioxide
  4. All of the above
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1 Answers

Option 4 : All of the above

The Correct Answer is Option 4 i.e All of the above.

  • When an acid reacts with a metal carbonate, salt, water, and carbon dioxide are produced.
  • Hydrochloric Acid on reaction with Sodium Carbonate forms Sodium chloride, carbon dioxide, and water. 
  • 2HCl+Na2CO3 ⟶2NaCl+CO2+H2O
  • The salt that forms will depend on the specific acid and metal carbonate which were used in the reaction.
  • Sulfuric acid + Ferrous carbonate → Ferrous sulfate + water + carbon dioxide
  • H2SO4 + FeCO3 → FeSO4 + H2O + CO2
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