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When hydrogen peroxide is shaken with an acidified solution of potassium dichromate in presence of ether,

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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 

(a) Cr2 O3 

(b) CrO42-

(c) CrO(O2)2 

(d) none of these

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(c) CrO(O2)2 

Cr2O72- + 2H+ + 4H2O2 → 2CrO(O2)2 + 5H2O

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