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`Na_(2)S_(2)O_(3).5H_(2)O` is heated strongly to produce `M,N` and water. Both are consisting of S. Mention the average oxidaion state of S in M and N respectively.
A. `-2,+5`
B. `-2,+4`
C. `-(2)/(5),+6`
D. `-2,+4`

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Correct Answer - C
`Na_(2)S_(2)O_(3).5H_(2)O overset(Delta)rarr Na_(2)SO_(4)+Na_(2)S_(5)`

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