1.

What is the oxidation number of sulphur in Na_(2)S_(4)O_(6)?

Answer»

`3//2`
`2//3`
`5//2`
`2//5`

SOLUTION :`S_(4)O_(6)^(-2)4x+6(-2)=-2,4x=10,x=10/4=5/2`
`Naoverset(Theta)O-overset(O)overset(||)UNDERSET(O)underset(||)(S^(+5))-S^(0)-S^(0)-overset(O)overset(||)underset(O)underset(||)(S^(+5))-overset(Theta)ONa`


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