Polyphosphates like sodium hexametaphosphate (calgon) are used as water softening agents…
Chemistry · JEE Advanced · NTA Exams — Hydrogen
Polyphosphates like sodium hexametaphosphate (calgon) are used as water softening agents because they
- forms soluble complexes with anionic species
- precipitate anionic species
- form soluble complexes with cationic species
- precipitate cationic species.
Answer
(C) form soluble complexes with cationic species
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