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Oxidation number of sulphur in Na(2)S(2)...

Oxidation number of sulphur in `Na_(2)S_(2)O_(3)` is

A

`+1`

B

`+2`

C

`+3`

D

`-3`

Text Solution

Verified by Experts

The correct Answer is:
C
The sum of oxidation states of all atoms in a molecules is zero.
Suppose oxidation state of S in `Na_(2)S_(2)O_(3)` be x.
`therefore 2 xx 1 + 2x + (-2 xx 3)=0`
`2 + 2x -6=0`
`2x = +4`
`x=+2`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-REDOX REACTIONS-Exercise 2
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  2. Choose the disproportionation reaction among the following redox react...

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  3. In which of the following reactions, H(2)O(2) acts as a reducing agent...

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  4. Observe the following reaction, 2NO(2)(g) + 2OH^(-)(aq) to NO(3)^(-)...

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  5. In acidic medium, H(2)O(2) changes Cr(2)O(7)^(2-) to CrO(5) which has ...

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  6. The oxidation number of Cr in K(2)Cr(2)O(7) is

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  7. Oxidation number of sulphur in Na(2)S(2)O(3) is

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  8. Both oxidation and reduction takes place in

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  9. The oxidant which cannot act as a reducing agent is

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  10. In the reaction Ag(2)O+H(2)O(2) rarr 2Ag+H(2)O+O(2),H(2)O(2) acts as

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  11. A compound contains three elements A,B and C, if the oxidation number ...

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  12. Which of the following is the example of a disproportionation reaction...

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  13. Which combination appears odd with respect to oxidation number per ato...

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  14. Nitric oxide acts as a reducing agent in which of the following reacti...

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  15. In which of the following, increasing orders the oxidation number of o...

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  16. In the reaction 3Br(2) + 6CO(3)^(2-) + 3H(2)O to 5Br^(-) + 2BrO(3)^(...

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  17. MnO(4)^(-) is a good oxidising agent in different medium changing to ...

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  18. The reaction, 10FeSO(4) + 2KMnO(4) + 8H(2)SO(4) to 2MnSO(4) + 5Fe(2)...

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  19. Which of the following is a redox reaction?

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  20. Given, xNa(2)HAsO(3) + y NaBrO(3) + z HCl to NaBr + H(3) AsO(4) + NaCl...

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