A) \[NaHC{{O}_{3}}\] and \[Mg{{(OH)}_{2}}\]
B) \[N{{a}_{2}}C{{O}_{3}}\]and \[Ca{{(HC{{O}_{3}})}_{2}}\]
C) \[Ca{{(HC{{O}_{3}})}_{2}}\] and \[Mg{{(OH)}_{2}}\]
D) \[Ca{{(OH)}_{2}}\] and \[NaHC{{O}_{3}}\]
Correct Answer: A
Solution :
\[NaHC{{O}_{3}}\] is used in medicine to neutralize the acidity in the stomach. Magnesium hydroxide is basic in nature and dissolves in acids forming corresponding salts. So, both are used in antiacid medicinal preparation.
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