Ncert Exercises & Solutions

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)?

a. $H^{+}$ ions

b. ${Mg}^{2 +}$ ions

c. ${Ca}^{2 +}$ ions

d. ${SO}_{4}^{2 -}$ ions

Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)

Hint: Water hardness is the amount of dissolved calcium and magnesium in the water.

To make hard water soft, the zeolite method is used. Sodium zeolite or sodium aluminosilicate (Na₂Al₂ Si₂O₈·xH₂O )is used.

It has a unique property of exchanging cations such as Ca²⁺ and Mg²⁺ in hard water for the sodium ion.

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions