An acid produces a gas “X” on reaction with metal and carbonates separately. What is “X” in this reaction?

An acid produces a gas "X" on reaction with metal and carbonates separately. What is "X" in this reaction?

Right Answer is:

Carbon dioxide

SOLUTION

The acid reacts with a metal carbonate or metal hydrogen carbonate to form salt, water, and carbon dioxide gas released with brisk effervescence

Acid + Metal carbonate/Metal bicarbonate → Salt + Water + Carbon dioxide

For example,

NaHCO3 (s) + HCl (aq) → NaCl (aq) + CO2 (g) + H2O (L)

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