When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water, the sodium ions are exchanged with

Options

A. `H^+` ions
B. `Ca^(2+)` ions
C. `SO_4^(2-)` ions
D. `Mg^(2+)` ions or (e) `OH^-` ions

Answer

B,D

Explanation

Zeolite (hydrated aluminium silicate) exchanges `Na^+` ions with the `Ca^(2+)` and `Mg^(2+)` ions present in hard water.