When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with
$1 .$ $H^{+}$ ions
$2 .$ $C a^{2 +}$ ions
$3 .$ $S {O_{4}}^{- 2}$ ions
$4 .$ $M g^{2 +}$ ions

Question

When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with 1. H^(+) ions 2. Ca^(2+) ions 3. SO^(4-2) ions 4. Mg^(2+) ions

MARKS Content Team · Accepted Answer

Correct answer: (A) 2, 4. Na_2Al_2Si_2O_8.xH_2O (zeolite) is written as Na_2Z. In it Na^(+) ions exchange Ca^(+) and Mg^(2+) ions of hard water to remove permanent hardness of water as follows Na_2Z+Mg^(2+)→2Na^(+)+MgZ Na_2Z+Ca^(2+)→2Na^(+)+CaZ

When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with
$1 .$ $H^{+}$ ions
$2 .$ $C a^{2 +}$ ions
$3 .$ $S {O_{4}}^{- 2}$ ions
$4 .$ $M g^{2 +}$ ions

Solution

More s Block Elements Questions

When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with 1. H+ ions 2. Ca2+ ions 3. SO4-2 ions 4. Mg2+ ions

Solution

More s Block Elements Questions

When zeolite, which is hydrated sodium aluminium silicate, is treated with hard water the sodium ions are exchanged with
$1 .$ $H^{+}$ ions
$2 .$ $C a^{2 +}$ ions
$3 .$ $S {O_{4}}^{- 2}$ ions
$4 .$ $M g^{2 +}$ ions