The oxidation number of S in Na_(2) S_(4)O_(6)is

1.	The oxidation number of S in Na_(2) S_(4)O_(6)is
Answer» `+ 2.5` ` + 2 and + 3`(TWO S have + 2 and other two have +3) + 2 and + 3 (THREE S have + 2 and one S has + 3) ` + 5 and 0` (two S have + 5 and the other two S have 0) Solution :`Na_(2)S_4O_6:NaO-underset(O)underset(+5\|\|"")overset(O)overset(\|\|)S-overset(0)S-overset(0)S-overset(O)overset(\|\|)underset(O)underset(\|\|+5)S-ONa`

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