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When H2O2 is shaken with an acidified so...

When `H_2O_2` is shaken with an acidified solution of `K_2Cr_2O_7` in presence of ether, the ethereal layer turns blue due to the formation of

A

`Cr_2O_3`

B

`CrO_4^(2-)`

C

`Cr_2(SO_4)_3`

D

`CrO_5`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The bonds present in the structure of dichromate ion are

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  2. Write lewis dot symbol for following elements : carbon

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  3. When H2O2 is shaken with an acidified solution of K2Cr2O7 in presence ...

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  4. Draw lewis dot structure of C2H4

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  5. How would you account for the increasing oxidising power in the series...

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  6. Draw lewis dot structure of C2H2

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  7. Draw the lewis dot structure of COCl2

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  8. Which of the following ions has the same number of unpaired electrons ...

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  9. What is the maximum oxidation state shown by actinoids?

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  10. The atomic number of cerium (Ce) is 58. The correct electronic configu...

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  11. The only radioactive element among the lanthanoids is

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  12. Identify a ‘Chemical twin' among the following

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  13. How many grams of potassium dichromate are required to oxidise 20.0 g ...

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  14. Which of the following statement regarding lanthanides is false?

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  15. How is sodium chromate converted into sodium dichromate, in the manufa...

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  16. Identify the metal that forms colourless compounds.

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  17. What is the general molecular formula of the products obtained on heat...

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  18. Choose the wrong statement in the following:

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  19. In aqueous solution, Cr^(2+) is stronger reducing agent than Fe^(2+). ...

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  20. Choose the correct matching of transition metal ion and magnetic momen...

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