68th BPSC Prelims (2023), question 89

🔬 Science & Technology

  1. Acids react with metal carbonates to liberate ______ gas.

    1. CO₂
    2. CO
    3. H₂
    4. More than one of the above
    5. None of the above
    Show answer

    Answer: A — CO₂

    Acids react with metal carbonates to release carbon dioxide (CO₂) gas.

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