1.

Aqueoussolution of Na_(2)S_(2)O_(3) onreactionwith CI_(2) water gives

Answer»

`Na_(2)S_(4)O_(4)`
`Na_(2)SO_(4)`
`Na_(2)S_(4)O_(6)`
`NaOH`

Solution :`S_(2)O_(3)^(2-) + 4CI_(2) + 5H_(2)O RARR S + SO_(4)^(2-) + CI^(THETA)`


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