Chemistry · Various concepts of acids and bases (Arrhenius, Bronsted Lowry and Lewis) and their ionization, acid-base equilibria (including multistage ionization) and ionization constants
Which compound is used as an antacid?
Which compound is used as an antacid?
- A. Soda ash
- B. Baking soda
- C. Nitrous oxide
- D. Magnesium carbonate
Step-by-step solution
Antacids neutralize excess stomach acid. Magnesium carbonate is a common antacid ingredient because it reacts with HCl to form magnesium chloride, water, and carbon dioxide, thereby reducing acidity. Baking soda (sodium bicarbonate) also acts as an antacid but is more commonly used for other purposes such as baking. Soda ash is too strong for medicinal use, and nitrous oxide is an anesthetic.
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