MCQ
Which of the following reaction teakes place at anode?
- A$\frac{1}{2} O _2+2 H ^{+} \longrightarrow H _2$
- B$F _2 \longrightarrow 2 F^{-}$
- ✓$2 Cr ^{3+}+7 H _2 O \longrightarrow Cr _2 O _7^{-2}+14 H ^{+}$
- DAll of the above
✓
Answer
Correct option: C.
$2 Cr ^{3+}+7 H _2 O \longrightarrow Cr _2 O _7^{-2}+14 H ^{+}$
C
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