1.

When hydrogen peroxide is shaken with an acidified solution of potassium dichromate in presence of ether, the ethereal layer turns blue due to the formation of

Answer»

`Cr_(2)O_(3)`
`CrO_(4)^(2-)`
`CrO(O_(2))_(2)`
NONE of these

Solution :`Cr_(2)O_(7)^(2-)+2H^(+)+4H_(2)O_(2)to2CrO(O_(2))_(2)+5H_(2)O`


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