An acid produces a gas “X” on reaction with metal and carbonates separately. What is “X” in this reaction?
Right Answer is:
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
NaHCO3 (s) + HCl (aq) → NaCl (aq) + CO2 (g) + H2O (L)