1.

Which of the following can act both as Bronsted acid and Bronsted base

Answer»

`Cl^(-)`
`HCO_(3)^(-)`
`H_(3)O^(+)`
`OH^(-)`

SOLUTION :Those substance which accept the proton are called BRONSTED base and which DONATE the proton are called Bronsted acid.
`HCO_(3)^(-) + H^(+) hArr H_(2)CO_(3)` Bronsted base.
`HCO_(3)^(-) hArr H^(+) + CO_(3)^(--)` Bronsted acid.


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