Which one among the following is known as Milk of Magnesia ?

Which one among the following is known as Milk of Magnesia ?

Magnesium bicarbonate
Magnesium carbonate
Magnesium sulphate
Magnesium hydroxide
This question was previously asked in
UPSC NDA-1 – 2024
Milk of Magnesia is the common name for an aqueous suspension of magnesium hydroxide.
Magnesium hydroxide (Mg(OH)₂) is a slightly soluble base. When suspended in water, it forms a milky white liquid known as Milk of Magnesia. It is commonly used as an antacid to neutralize stomach acid and as a laxative.
Magnesium carbonate is also used as an antacid but is not called Milk of Magnesia. Magnesium sulphate (Epsom salt) is used as a laxative and for baths. Magnesium bicarbonate exists only in aqueous solution.
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