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A dilute ferrous sulphate solution was g...

A dilute ferrous sulphate solution was gradually added to the beaker containing acidified permanganate solution. The light purple colour of the solution fades and finally disappears. Which of the following is the correct explanation for the observation?

A

`KMnO_(4)` is an oxidising agent, it oxidises `FeSO_(4)`.

B

`FeSO_(4)` acts as an oxidising agent and oxidises `KMnO_(4)`.

C

The colour disappears due to dilution, no reaction is involved.

D

`KMnO_(4)` is an unstable compound and decomposes in presence of `FeSO_(4)` to a colourless compound.

Text Solution

Verified by Experts

The correct Answer is:
A
Acidified `KMnO_(4)` is an oxidising agent, it oxidises `FeSO_(4)`, hence pink colour of `KMnO_(4)`, fades and finally disappears.
`2KMnO_(4)+8H_(2)SO_(4)+10FeSO_(4)toK_(2)SO_(4)+5Fe_(2)(SO_(4))_(3)+2MnSO_(4)+8H_(2)O`
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MTG IIT JEE FOUNDATION-CHEMICAL REACTIONS AND EQUATIONS-EXERCISE (MULTIPLE CHOICE QUESTIONS) (LEVEL-2)
  1. A dilute ferrous sulphate solution was gradually added to the beaker c...

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  2. A dilute solution of sodium carbonate was added to two test tubes - on...

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  3. Which of the following species do not show disproportionation reaction...

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  4. In the reaction, H(2)S+H(2)O(2)toS+2H(2)O

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  5. Which of the following is true regarding dissolution of NH(4)Cl in wat...

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  6. In which of the following chemical equations, the abbreviations repres...

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  7. In the ionic equation, BiO(3)^(-)+6H^(+)+xe^(-) to Bi^(3)+3H(2)O, th...

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  8. Which of the following shows the given reactions in the increasing ord...

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  9. Which of the following is a redox reaction?

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  10. Given E("Cr(2)O(7)^(2-)//Cr^(3+))^(@)=1.33V,E(MnO(4)^(-)//Mn^(2+))^(@)...

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  11. Which of the following reactions evolves heat?

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  12. Which of the following is not a thermal decomposition reaction?

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  13. Which of the following combination of reactants will lead to the forma...

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  14. Three beakers labelled as A, B and C each containing 25 mL of water we...

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  15. When the ion Cr(2)O(7)^(2-) acts as an oxidant in acidic aqueous solut...

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  16. Which is a double displacement as well as neutralisation reaction?

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  17. Which of the following processes does not involve either oxidation or ...

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  18. When sodium hydroxide is added to ferric chloride solution, a reddish ...

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  19. Complete the chemical reaction. Mg((s))+H(2)SO(4(aq))to?

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  20. Study the given diagram carefully. Identify X, Y and the type of ...

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