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How much time approximately would it tak...

How much time approximately would it take in minutes to deposit 1.18 g of metallic copper on a metal object when a current of 2.0 A is passed through the electrolytic cell containing `Cu^(2+)` ions?

A

10 min

B

20 min

C

30 min

D

40 min

Text Solution

Verified by Experts

The correct Answer is:
C
According to Faraday.s first law:
w=Zit
w=1.18 g. z= `63.5/(2xx96500) ` , I=2 A
t= `w/(ZI)=1.18/(63.5xx2)xx2xx96500=1793` s or `1793/60~~30 m`
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