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To an acidic solution of an anion, a few...

To an acidic solution of an anion, a few drops of `Kmno_(4)` solution are added. Which of the following, if present, will not decolourise the `KMnO_(4)` solution?

A

`CO_(3)^(2-)`

B

`NO_(2)^(-)`

C

`S^(2-)`

D

`Cl^(-)`

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NARAYNA-REDOX REACTION-Exercise -4
  1. For decolourisation of 1 "mol of" KMnO(4), the moles of H(2)O(2) requi...

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  2. A metal ion M^(3+) loses three electrons , its oxidation number will b...

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  3. To an acidic solution of an anion, a few drops of Kmno(4) solution are...

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  4. The number of moles of K(2)Cr(2)O(7) reduced by 1 mol of Sn^(2+) ions ...

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  5. Which of the following is not a reducing agent ?

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  6. The oxidation state of chromium is [Cr(PPh(3))(3)(CO)(3)] is

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  7. The values of the x and y in the following redox reaction. xCl(2)+6o...

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  8. Which gas is evolved when PbO(2) is treated with conc HNO(3) ?

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  9. The equivalent mass of oxidising agent in the following reaction is ...

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  10. In alkaline medium, ClO(2) oxidises H(2)O(2) "to" O(2) and is itself r...

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  11. Match the reaction in column I with average number given in column II.

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  12. Assertion (A): H(2)O(2) acts only as an oxidising agnet. H(2)O(2)rar...

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  13. Assertion (A): KMnO(4) is a stronger oxidising agent than K(2)Cr(2)O(7...

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  14. Assertion (A): SO(2) and Cl(2) are both bleaching agents. Reason (R ...

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  15. Assertion (A): F(2) undergoes disproportionation reaction. Reason (R...

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  16. Assertion (A): Sn reacts with HCl to produce H(2) gas. Reason (R ): ...

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  17. Assertion (A): In aqueous solution, SO(2) reacts with H(2)S liberating...

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  18. Assertion (A): PbCl(2) is more stable than PbCl(4). Reason (R ): P...

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  19. Assertion (A):F(2) is stronger reducing agent than O(2) Reason (R ):...

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  20. Assertion (A): The two Fe atoms in Fe(3)O(4) have different oxidation ...

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