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Polyphosphates are used as water softeni...

Polyphosphates are used as water softening agents because they

A

Form soluble complexes with anionic

B

Precipitate anionic species

C

From soluble complexes with cationic species

D

Precipitate cationic species

Text Solution

Verified by Experts

The correct Answer is:
C
`2Ca^(2+) + Na_(2)[Na_(4)(PO_(3))_(6)] to 4Na^(+) + underset("water soluble ")(Na_2[Ca_(2)(PO_(3))_(6)])`
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