Which of the following compounds are administered as antacids?
1. Sodium carbonate
2. Sodium hydrogen carbonate
3. Aluminium carbonate
4. Magnesium hydroxide
(b, d)
The antacid is a substance that neutralizes the excess of acid in the stomach.
The chemical formula of sodium hydrogen carbonate is NaHCO. It is often used as an antacid because it neutralizes excess of HCI secreted from the walls of the stomach
However, excessive hydrogen carbonate can make the stomach alkaline and trigger the production of even more acid. Milk of magnesia, which is an aqueous solution of magnesium hydroxide is also used as an antacid.
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