1.

Which of the following reaction is possible at anode ?

Answer»

`2Cr^(3+) + 7H_(2)O RARR Cr_(2)O_(7)^(2-) +14H^(+)`
`F_(2) rarr 2F^(-)`
`1/2 O_(2) +2H^(+) rarr H_(2)O`
None of these



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