1.

The pair of compounds which can exist together in aqueous solution isA. `Na_(2)CO_(3)` and `NaHCO_(3)`B. `K_(2)Cr_(2)O_(7)` and `NaOH`C. `NaHCO_(3)` and `NaOH`D. none of these

Answer» Correct Answer - A
`HCO_(3)^(-)` in presence of `OH^(-)` is converted to `CO_(4)^(2-),Cr_(2)O_(7)^(2-)` in presence of `OH^(-)` is converted to `CrO_(4)^(2-)`.


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