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When H_2O_2 is added to ice cold solution of acidified potassium dichromate in ether and the contents are shaken and allowed to stand |
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Answer» A blue colour is OBTAINED in ether due to FORMATION of `Cr_2(SO_4)_3` `Cr_2 O_7^(-2) + 2H^(+) + 4H_2O_2 to 2CrO_5 + 5H_2O` blue colour in ether |
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