When `CO_(2)` is passed through water, which of the following species will be present in water?

Options

A. `H_(2)CO_(3), CO_(2), CO_(3)^(2-), HCO_(3)^(-)`
B. `HCO_(3)^(-), CO_(3)^(2-)`
C. `CO_(3)^(-), CO_(2)`
D. `H_(2)CO_(3), CO_(2)`

Answer

A

Explanation

`H_(2)O+CO_(2)hArr H^(+)+HCO_(3)^(-)`
`HCO_(3)^(-)hArr H^(+)+CO_(3)^(2-)`
The species present will be : `H^(+),CO_(3)^(2-), HCO_(3)^(-) and H_(2)CO_(3)` (unionized).