Question

Calgon used as a water softener is
(a) Na₂[Na₄(PO₃)₆]
(b) Na₄[Na₂(PO₃)₆]
(c) Na₄[Na₄(PO₄)₅]
(d) Na₄[Na₂(PO₄)₆]

Answer 1

→→ 1st Option is correct i.e Na₂[Na₄(PO₃)₆]







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Answer 2

Answer:

first option is correct