$A$ steady current of $5 \, A$ is maintained for $45 \, min$. During this time,it deposits $4.572 \, g$ of zinc at the cathode of a voltameter. The $E.C.E.$ of zinc is:
- A$3.387 \times 10^{-4} \, g/C$
- B$3.387 \times 10^{-4} \, C/g$
- C$3.384 \times 10^{-3} \, g/C$
- D$3.394 \times 10^{-3} \, C/g$
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