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When acidified solution of K(2)Cr(2)O(7)...

When acidified solution of `K_(2)Cr_(2)O_(7)` is shaken with aqeous solution of `FeSO_(4)`, Then:

A

`Cr_(2)O_(7)^(2-)` ion is reduced to `Cr^(2+)` ions

B

`Cr_(2)O_(7)^(2-)` ion is converted to `CrO_(4)^(2-)` ions

C

`Cr_(2)O_(7)^(2-)` ion is reduced to Cr

D

`Cr_(2)O_(7)^(2-)` ion is converted to `CrO_(3)`.

Text Solution

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The correct Answer is:
A
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 1
  1. KMnO(4) is the oxo salt of :

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  2. The solubility of silver bromide in hypo solution (excess) is due to ...

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  3. In dilute alkaline solution,MnO(4)^(-) changes to:

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  4. Cl(2) gas is obtained by various reactions but not by:

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  5. The developer used in photography is an alkaline solution of:

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  6. When acidified solution of K(2)Cr(2)O(7) is shaken with aqeous solutio...

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  7. Which of the following compounds is used as the starting material for ...

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  8. CrO(4) dissolves in aqueous NaOH to give :

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  9. The final product obtained for the following reaction is: KMnO(4)("ex...

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  10. The f-block of the periodic table contains those elements in which:

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  11. Among the lanthanides the one obtained by synthetic method is (a)Lu ...

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  12. The most common lanthanoid is

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  13. Across the lanthanide series,the basicity of the lanthanoide hydroxide...

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  14. Actinides

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  15. The lanthanide contraction is responsible for the fact that

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  16. Lanthanides and actinides resemble in

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  17. The seperation of lanthanoids by ion exchange method is based on

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  18. Match the salts/mixtrues listed in column(I) with their respective nam...

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  19. Thermal decomposition of K2Cr2O7 produces:

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  20. Match the compounds listed in column I with characteristics type of re...

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