NEET
- Exam
- NEET
- Subject
- Chemistry
- Chapter
- Hydrogen
NEET · Chemistry · Hydrogen
What ions are exchanged in the ion-exchange method for water...
What ions are exchanged in the ion-exchange method for water softening using zeolite?
Options
- ASodium ions for chloride ions
- BSodium ions for sodium ions
- CSodium ions for hardness ions (calcium and magnesium ions)
- DSodium ions for hydrogen ions
Correct answer
C. Sodium ions for hardness ions (calcium and magnesium ions)
Step-by-step solution
In the ion-exchange method using zeolite, sodium ions in zeolite are exchanged for hardness ions, which are calcium and magnesium ions present in hard water.