68th B.P.S.C. (Pre) 2023
Acids react with metal carbonates to liberate ______ gas.
aH₂
bCO₂✓ Correct
cCO
dMore than one of the above
eNone of the above
Explanation
Acids react with metal carbonates to release carbon dioxide gas; along with this, metal salts and water are also formed. Sodium carbonate reacts with hydrochloric acid to form sodium chloride, carbon dioxide, and water.
general-science