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Acidified K(2)Cr(2)O(7) solution turns g...

Acidified `K_(2)Cr_(2)O_(7)` solution turns green when `NasO_(3)` is added to it. This is due to the formation of :

A

`CrSO_4`

B

`Cr_2(SO_4)_3`

C

`CrO_4^(2-)`

D

`Cr_2(SO_3)_3`

Text Solution

Verified by Experts

The correct Answer is:
B
`K_2Cr_2O_7 + 3Na_2SO_3 + 4H_2SO_4 to 3Na_2SO_4 + K_2SO_4 + Cr_2(SO_4)_3`
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -Past Years Questions
  1. The nitrate of which metal left globule on heating strongly

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  2. K(2)Cr(2)O(7) on heating with aqueous NaOH gives

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  3. Acidified K(2)Cr(2)O(7) solution turns green when NasO(3) is added to ...

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  4. Which one of the following statements is correct when SO(2) is passed ...

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  5. Which of the statements is not true ?

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  6. Which of the following does not give oxygen on heating ?

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  7. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reaction ...

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  8. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

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  9. F2 is the formed by reacting K2MnF6 with

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  10. Assuming complete ionization, same moles of which of the following com...

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  11. To protect iron against corrosion, the most suitable metal plating on ...

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  12. When copper is heated with conc.HNO(3) it produces

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  13. Silver obtained from argentiferrous lead containing lead impurity is p...

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  14. Which of the following metals is obtained by leaching out process usin...

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  15. Which of the following does not react with AgCl?

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  16. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

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  17. The compound insoluble in water is

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  18. Name the gas that can readily decolourise acidified KMnO(4) solution:

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  19. The magnitude and permanganate ions are tetrahedral due to

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  20. The calculated spin only magnetic moment of Cr^2+ ion is:

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