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For the reaction CrO(4)^(2-)+?rarrCr(2)O...

For the reaction `CrO_(4)^(2-)+?rarrCr_(2)O_(7)^(-2)`  the missing ion is

A

`OH^(-)`

B

`H^(+)`

C

`OH^(+)`

D

`O^(2-)`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-D - BLOCK ELEMENTS-OBJECTIVE EXERCISE - 1 (PERMANGANATE & DICHROMATE)
  1. Highest tendency for M^(+3) rarrM^(+2) is in

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  2. Match the following {:("SET - I","SET - II"),("A) "Mn(2)O(7),"1) Cov...

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  3. When MnO(2) is fused with KOH in air, it gives

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  4. Which of the following cannot be oxidised by the acidified solution of...

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  5. An acidified solution of KMnO(4) oxidises

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  6. To an acid solution of an anion, a few drops of KMnO(4) solution are a...

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  7. KMnO(4) acts as an oxidising agent in

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  8. When KMnO(4) reacts with acidified FeSO(4)

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  9. Permeanganate ion is not isostructural with

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  10. When mangnese dioxide is fused with KOH in air, it gives

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  11. The number of moles of KMnO(4) that will be needed to react completel...

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  12. The product of oxidation of I^(-) with MnO(4)^(-) in alkaline medium i...

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  13. Number of Cr-O sigma bonds in dichromate ion Cr(2)O(7)^(2-) is

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  14. Which of the following oxides give chromic acid in sulphuric acid solu...

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  15. Number of moles of K(2)Cr(2)O(7) reduced by one mole of Sn^(2+) ions i...

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  16. Which of the following statements is/are true A) Na(2) r(2), O(7) is...

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  17. The shape of chromate ion is

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  18. When Na(2)CrO(4), is dissolved in sulphuric acid, it changes to

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  19. Oxidation number of chromium in chromyl chloride is

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  20. For the reaction CrO(4)^(2-)+?rarrCr(2)O(7)^(-2)  the missing ion is

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