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Explain the following: K(2)Cr(2)O(7) a...

Explain the following:
`K_(2)Cr_(2)O_(7)` acts as a powerful oxidising agent in acidic medium.

Text Solution

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`K_(2)Cr_(2)O_(7)` acts as a powerful oxidising agent in acidic medium as orange coloured `Cr^(6+)` is reduced to `Cr^(3+)` (green) according to the following equation -
`Cr_(2)O_(7)^(2-) + 14H^(+) + 6e^(-) to 2Cr^(3+) +7H_(2)O`
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