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Electrochemistry question

2002 · Shift 0 · Q34

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JEE Main
Chemistry
Electrochemistry
2002 · Shift 0 · Q34

Electrochemistry question

2002 · Shift 0 · Q34

JEE MainChemistryElectrochemistryMCQ+4 / −1

Which of the following reaction is possible at anode?

A
2 $Cr^{3+}$ + 7 $H_2O$ $\to Cr_2O_7^{2-}$ + 14 $H^+$
B
$F_2$ $\to$ 2 $F^-$
C
(1/2) $O_2$ + 2 $H^+$ $\to$ $H_2O$
D
none of these

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