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 as medicine to neutralize the acidity in 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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