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When H(2)O(2) is shaken with an acidifie...

When `H_(2)O_(2)` is shaken with an acidified solution of `K_(2)Cr_(2)O_(7)` in the presence of ether , the ethereal layer turns blue due to the formation of

A

`Cr_(2)O_(3)`

B

`CrO_(4)^(-)`

C

`Cr_(2)(SO_(3))_(3)`

D

`CrO_(5)`

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The correct Answer is:
D
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Exercise 2 (Miscellaneous Problems)
  1. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

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  2. Which of the statements (s) is/are not true?

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  3. When H(2)O(2) is shaken with an acidified solution of K(2)Cr(2)O(7) in...

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  4. Which of the following lanthanoid ions is diamagnetic? (Atomic number ...

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  5. The trivalent ion having size in lanthanide series is

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  6. The correct statement is

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  7. A metal gets coated with a green basic carbonate when exposed to atmos...

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  8. The colour of light absorbed by an aqueous solution of CuSO(4) is

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  9. Which one of the following does not correctly represent the correct or...

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  10. Which one of the following has a magnetic moment of 1.75 BM?

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  11. The oxidation state of chromium in the final product formed by the rea...

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  12. Which of the following compound is used in gas lighter?

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  13. The reaction of aqueus KMnO(4) with H(2)O(2) in acidic conditions give...

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  14. In which of the pairs of ions given, there is an ion that forms a co-o...

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  15. Four successive members of the first series of transition metals are l...

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  16. Which of the following statements about the interstitial compounds is ...

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  17. Magnetic moment 2.83 BM is given by which of the following ions? "At...

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  18. The metal that cannot obtained by electrolysis of an aqueous solution ...

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  19. What is the general electronic configuration for second row transition...

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  20. The colour of Cu(2)^(2+) containing salt is

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