1.

The pair whose both species are used in acid medicinal preparation is:A. `NaHCO_(3)` and `Mg(OH)_(2)`B. `Na_(2)CO_(3)` and `Mg(OH)_(2)`C. `Ca(HCO_(3))_(2)` and `Mg(OH)_(2)`D. `Ca(OH)_(2)` and `NaHCO_(3)`

Answer» Correct Answer - A
Yellow fever was the first viral disease detected in human being.


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