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2mNo(4)^(2-)+cl (2) rarr Mn^(2+)+5Fe^(3+...

`2mNo_(4)^(2-)+cl _(2) rarr Mn^(2+)+5Fe^(3+) `
`MnO_(4)^(2-)` can be converted to `MnO_(4)^(-)`

A

by oxidation with `Cl_(2)`

B

by electrochemical oxidationat anode

C

Both (a) and (b)

D

None of the above

Text Solution

Verified by Experts

The correct Answer is:
C
`2MnO_(4)^(2-)+Cl_(2)rarr2MnO_(4)^(-)+2Cl^(-)`
`mnO_(4)^(2-)+e^(-)rarrMnO_(4)^(-)`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. Consider the following statements. I. As the oxidation number of a m...

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  2. A blue solution of copper sulphate becomes darker when treated with ex...

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  3. 2mNo(4)^(2-)+cl (2) rarr Mn^(2+)+5Fe^(3+) MnO(4)^(2-) can be conver...

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  4. One mole of FeC(2)O(4) is oxidised by KMnO(4) in acidic medium. Number...

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  5. Acidified potassium permanganate soultion is decoloursied by

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  6. KMnO(4) in basic medium is used as

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  7. The atomic number of V,Cr, Mn and Fe are respectively 23,24,25 and 26....

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  8. In the following figure the Cr-O-Cr bond angle is of X^(o). What is th...

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  9. Acidified KMnO(4) can be decolourised by:

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  10. On heating KMnO(4), one among the following is not formed:

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  11. KMnO(4) forms dark purple crystals, which are isostructural with those...

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  12. In alkaline H(2)O(2),Cr(2)O(7)^(2-) changes to tetraperoxo species… ha...

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  13. K(2)Cr(2)O(7)//H^(+) changes to green by

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  14. An explosion takes place when conc. H2SO4 is added to KMnO4. Which of ...

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  15. The outer electronic configuration of Gd (At.No. 64) is

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  16. Identify the incorrect statement among the following.

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  17. The atomic size of cerium and promethium is quite close, because

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  18. The lanthanide contraction relates to

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  19. Because of lanthnoid contraction, which of the following pairs of elem...

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  20. Ln^(3+) (trivalent lanthanides ions ) have electronic configuration.

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