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

Options

A. `H^(+)`ions
B. `Ca^(2+)` ions
C. `Mg^(2+)` ions
D. Both `Ca^(2+)` and `Mg^(2+)`

Answer

D

Explanation

Zeolite when treated with hard water exchange `Ca^(+2)` and `Mg^(+2)` ions `(` present in hard water `)` with `Na^(+)` ions.