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Class 10ScienceChemical Substances – Nature and BehaviourAcids, Bases, and SaltsMedium
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In which reaction can salt, water, and carbon dioxide all be formed?

Answer and explanation

Correct answer: Reaction of acid with metal carbonate

The governing concept is the characteristic reaction of an acid with a metal carbonate. In general, acid + metal carbonate produces salt + water + carbon dioxide; for example, 2HCl + Na₂CO₃ → 2NaCl + H₂O + CO₂. Therefore option A is correct. An acid with a metal usually produces salt and hydrogen, while simple mixing of salt and water produces no such reaction.

Related tags

Metal CarbonateAcid ReactionCarbon DioxideAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience
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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?
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  8. 8A student dips red litmus paper into a soap solution. What change will occur in the red litmus paper?
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