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Which of the following compounds is used as an ingredient in antacids?
Nitric acid
Sodium chloride
Copper sulphate
Sodium hydrogen carbonate
Sodium hydrogen carbonate
Sodium hydrogen carbonate (baking soda) as an antacid
Compound: Sodium hydrogen carbonate (NaHCO3)
Common Name: Baking Soda
Function: Neutralizes excess stomach acid
Chemical Nature of Antacids
Antacids are mild alkaline substances designed to neutralize excess hydrochloric acid in gastric juice caused by acidity or indigestion.
Role of Sodium Hydrogen Carbonate
Sodium hydrogen carbonate (NaHCO3, baking soda) is a mild, non-corrosive basic salt. Being alkaline, it reacts with excess HCl in the stomach to neutralize it: NaHCO3+HCl→NaCl+H2O+CO2
Sodium hydrogen carbonate provides rapid relief from acidity.
Sodium hydrogen carbonate