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Which reaction is possible at anode?...

Which reaction is possible at anode?

A

`2Cr^(3+) + 7H_(2)O rarr Cr_(2)O_(7)^(2-)+14H^(+)`

B

`F_(2) rarr 2F^(-)`

C

`(1)/(2)O_(2)+2H^(+) rarr H_(2)O`

D

None of the above

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The correct Answer is:
A
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