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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_2O_3`

B

`CrO_4^(2-)`

C

`Cr_2(SO_4)_3`

D

`CrO_5`

Text Solution

Verified by Experts

The correct Answer is:
D
Acidified `K_2Cr_2O_7` solution reacts with hydrogen peroxide to give a deep blue solution due to the formation of peroxo compound `CrO_5`.
`K_2Cr_2O_7 + H_2SO_4 + 4H_2O_2 to 2CrO_5 + K_2SO_4 + 5H_2O`
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ERRORLESS-THE d-AND f- BLOCK ELEMENTS -NCERT BASED QUESTIONS (Compounds of Transitional Elements)
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