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Conversion of manganous salt to MnO(2) u...

Conversion of manganous salt to `MnO_(2)` using `KMnO_(4)` in netural medium is catalysed by:

A

`ZnSO_(4)`

B

`ZnO`

C

`Fe_(2)(SO_(4))_(3)`

D

`FeO`

Text Solution

Verified by Experts

The correct Answer is:
A, B
`2MnO_(4)^(2-)+3Mn^(2+)+2H_(2)Oto5MnO_(2)+4H^(+)`.
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GRB PUBLICATION-D-BLOCK ELEMENTS-Multiple objective type
  1. Select the correct reaction sequence(s)?

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  2. Choose the correct statement about KMnO(4).

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  3. Conversion of manganous salt to MnO(2) using KMnO(4) in netural medium...

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  4. An element of 3d-transition series shows two oxidation states x and y,...

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  5. To an acidified dichromate solution, a pinch of Na(2)O(2) is added and...

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  6. Potash alum is a double salt, its aqueous solution shows the character...

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  7. Addition of non-metals like B and C to the interstitial sites of a tra...

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  8. Mercury is a liquid at 0^(@) C because of

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  9. The correct statement(s) about transition element is/are.

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  10. The ionisation energies of tranition elements are:

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  11. The metal(s) which does/do not form amalgam is/are:

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  12. Which of the following statements concern with d-block metals?

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  13. The highest oxidation state exhibited by a transition elements is .

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  14. Amphoteric oxide(s) is/are

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  15. The catalytic activity of transition elements is related to their:

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  16. In the equation: M+8CN^(-)+2H(2)O+O(2)to4[M(CN)(2)]^(-)+4OH^(-) meta...

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  17. CuSO(4)(aq)+4NH(3)toX, then X is

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  18. Amphoteric oxide(s) of Mn is/are

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  19. The lanthanide contraction is responsible for the fact that

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  20. Ion(s) having non zero magnetic moment (spin only) is/are

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