MEDIUMMCQ SINGLEJEE Mains ChemistryInorganic ChemistryHydrogenHardness of Water
Which of the following compounds is used for water softening? (a) Ca PO (b) Na PO (c) Na P O (d) Na HPO
Answer
C
Explanation
Sodium hexametaphosphate, 3 6 18 Na P O , commercially called „Calgon‟ is added to hard water for water softening.
Practice More Like This
Take chapter-wise tests, track your progress, and master Hydrogen.
Start Free Practice →