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The oxidation states of sulphur in the a...

The oxidation states of sulphur in the anions `SO_(3)^(2-), S_(2)O_(4)^(2-)`, and `S_(2)O_(6)^(2-)` follow the order

A

`S_(2)O_(4)^(2-)gtS_(2)O_(6)^(2-)gtSO_(4)^(2-)gtSO_(3)^(2-)`

B

`S_(2)O_(6)^(2-)gtSO_(3)^(2-)gtS_(2)O_(4)^(2-)gtSO_(4)^(2-)`

C

`SO_(4)^(2-) gt S_(2)O_(6)^(2-)gtSO_(3)^(2-)gtS_(2)O_(4)^(2-)`

D

`SO_(3)^(2-) gtSO_(4)^(2-)gtS_(2)O_(4)^(2-)gtS_(2)O_(6)^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
C

`SO_(3)^(2-) rarr x + (-6)=-2 rArr x= +4`
`SO_(4)^(-) rarr x + (-8)=-2rArr x=+6`
`S_(2)O_(4)^(2-) rarr 2x+(-8)=-2rArr x=+3`
`S_(2)O_(6)^(2-) rarr 2x+(-12)=-2 rArr x= +5`
Hence `SO_(4)^(2-) gt S_(2)O_(6)^(2-) gt SO_(3)^(2-) gt S_(2)O_(4)^(2-)`
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