Which of the following reactions is `//` are possible at the anode ?

Options

A. `F_(2)+2e^(-) rarr 2F^(c-)`
B. `2H^(o+)+(1)/(2)O(2) +2e^(-) rarr H_(2)O`
C. .2
C
r
3
+
+
7
H
2
O
→
C
r
2
O
2
−
7
+
14
H
⊕
+
6
e
−
`
D. `Fe^(2+) rarr Fe^(3+)+e^(-)`

Answer

c,d

Explanation

At anode oxidation takes place, so reactions `(c)` and `(d)` are oxidation reactions.