What changes occur when acidified Cr(2)O...

What changes occur when acidified `Cr_(2)O_(7)^(2-)` ion react with `H_(2)O_(2)` solution in presence of ether solvent?

Orange colour of solution turns blue

Oxidation state of Cr-atom decrease

Oxidation state of Cr-atom remains constant

Orange colour of solution turns green

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A, C

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