The pair whose both species are used in antacid medicinal preparation is
A
NaHCO3 and Mg(OH)2
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B
Na2CO3 and Ca(HCO3)2
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C
Ca(HCO3)2 and Mg(OH)2
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D
Ca(OH)2 and NaHCO3
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Solution
The correct option is ANaHCO3 and Mg(OH)2 Milk of magnesia is an aqueous suspension of magnesium hydroxide [Mg(OH)2] used to treat acid indigestion. Also sodium bicarbonate is used for antacid medicinal preparation.