Acids react with metal carbonates to liberate ______ gas.
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Correct Answer: Option B
Detailed Explanation:
When acids react with metal carbonates, the general reaction is: Acid + Metal Carbonate → Salt + Water + CO₂.
For example, HCl + CaCO₃ → CaCl₂ + H₂O + CO₂, producing carbon dioxide gas (CO₂) which is observed as effervescence (bubbles).
Question 4 of 8 Acids, Bases and Salts
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