1.

In 0.020 M carbonic acid solution

Answer»

`H_2 CO_3` isstronger acidthan ` HCO_(3)^(-)`
`H_2 CO_3 hArr2H^(+) +CO_(3)^(3- ) ,k_(EQ) = K_(a_1) .K_(a_2)`
`[HCO_(3)^(- )] ~~[CO_(3)^(2-)]`
It canbe SAID`k_(a_i)gt gtK_(w`

Solution :As` K_(a_1 )gt gtK_(w)`
`HCO_(3)^(-)` isa verypooracid


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