Question

which of the following substance is an antacid
a) nacl
b) hcl
c) mg(oh)2
d) h2so4

Answer 1

option c is the correct answer that is mg(oh)2

Answer 2

Magnesium hydroxide $\mathrm{Mg}(\mathrm{OH})_{2}$ is an antacid

Answer - (Option C)

Explanation:

• It reduces the acidity of the gastric juices or hydrochloric acid produced by the stomach.
• The hydroxide ions present in $\mathrm{Mg}(\mathrm{OH})_{2}$ reacts with the acidic H+ ions in the gastric juice and forms water, thereby neutralizing the acidity of the gastric juice.
• Thus the acid levels are reduced in the stomach. As an antacid, it relieves acidity and its symptoms like indigestion, heartburn, and sour stomach.
• As an antacid, magnesium hydroxide is available as chew-able and suspension.
• It is prescribed to patients with stomach ulcers, hiatal hernia, esophagitis, or acidity in the stomach.