In obtaining soft water, the salt of oxy acids of phosphorus used isA. ChlorapatiteB. Microcosmic saltC. CalgonD. Rock phosphate.

In obtaining soft water, the salt of oxy acids of phosphorus used isA.

1.	In obtaining soft water, the salt of oxy acids of phosphorus used isA. ChlorapatiteB. Microcosmic saltC. CalgonD. Rock phosphate.
Answer» Correct Answer - C Calgon is sodium hexametaphosphate. `(NaPO_(3))_(6)` or `Na_(2)[PO_(3))_(6)]`

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In obtaining soft water, the salt of oxy acids of phosphorus used isA. ChlorapatiteB. Microcosmic saltC. CalgonD. Rock phosphate.

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