Mass ratio of Na(2)SO(3) and H(2)O in Na...

Mass ratio of `Na_(2)SO_(3) and H_(2)O` in `Na_(2)SO_(3)*xH_(2)O` is 1:1 thus the ratio of their mole number is-

`1:1`

`1:3`

`1:7`

`7:1`

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