Which of the following statement (s) is/are correct ?

Options

A. A queous solution of sodium carbonate is alkaline because carbonate ion takes up proton and release `OH^(-)` ion from water.
B. when sodium carbonate is added to the aqueous solutions of `Al^(3+)` and `Fe^(3+)` they are precipated as their carbonates
C. if `Na_(2)Co_(3)` solution is added to the aqueous solutions of `Ca^(2+), Sr^(2+)`, and `Ba^(2+)` they are precipated as their carbonates.
D. Addition of `Na_(2)Co_(3)` solution to the aqueous solution of `Mg^(2+), Cu^(2+),` and `Zn^(2+)` precipitates them has their basic carbonates

Answer

A, C, D