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Which of the following represents calgo?...

Which of the following represents calgo?

A

`Na_(2)AI_(2)Si_(2)O_(8)`

B

`Mg_(3)(PO_(4))_(2)`

C

`Na_(2)[Na_(4)(PO_(3))_(6)]`

D

`Na_(2)[Mg_(2)(PO_(3))_(6)]`

Text Solution

Verified by Experts

The correct Answer is:
C
The complex salt of metaphosphoric acid, sodium hexametaphosphate `(NaPO_(3))_(6)` is known as calgon. It is represented as `Na_(2)[Na_(4)(PO_(3))_(6)]`.
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