In the following question two or more options may be correct. When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?

Question

Philoid · Accepted Answer

Zeolite is hydrated sodium aluminium silicate, or Al₂Si₂O₈. Hard water consists mainly of calcium and magnesium salts, hence sodium ions are exchanged with mainly Mg²⁺ and Ca²⁺ ions. The reaction is given as

Na₂Z + M²⁺→ MZ + 2Na⁺

Where M is Mg²⁺ or Ca²⁺ and Z is Zeolite.

Na₂Z + M²⁺→ MZ + 2Na⁺

Where M is Mg²⁺ or Ca²⁺ and Z is Zeolite.

In the following question two or more options may be correct.When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?

In the following question two or more options may be correct.
When Zeolite, which is hydrated sodium aluminium silicate is treated with hard water, the sodium ions are exchanged with which of the following ion(s)?