Which of the following compounds is also known as "Milk of Magnesia"?
Correct Answer: Magnesium Hydroxide
Subject: chemistry
- Magnesium Carbonate
- Magnesium Hydroxide
- Calcium Hydroxide
- Sodium Hydroxide
Explanation: • <b>Key Fact</b>
Magnesium hydroxide [Mg(OH)₂] is commonly called Milk of Magnesia.
• <b>Supporting Detail</b>
It is a mild base with a pH of approximately 10 to 10.5.
• <b>Related Concept</b>
It is widely used as an antacid to neutralize excess stomach acidity during indigestion.
• <b>Why wrong options are wrong</b>
Calcium hydroxide is slaked lime; Sodium hydroxide is caustic soda.
• <b>Exam Trick</b>
Magnesium = Magnesia.
• <b>Additional Info</b>
It occurs naturally as the mineral brucite.