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Question

Milk of magnesia Mg(OH)2 is a/an:
  1. antacid
  2. acid
  3. alkali
  4. rock salt

A
alkali
B
antacid
C
acid
D
rock salt
Solution
Verified by Toppr

Milk of Magnesia is a white suspension of hydrated magnesium carbonate in water, used as an antacid or laxative.
Mg(OH)2 may be termed as an alkali but due to its low solubility in water it is considered as an atypical alkali.
Therefore antacid is the most appropriate answer.

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