A) \[0.0195\,\,g\]
B) \[0.0013\,\,g\]
C) \[0.020\,\,g\]
D) \[0.0020\,\,g\]
Correct Answer: B
Solution :
Key Idea: According to Faraday's first law of electrolysis. \[w=Zit\] or \[=\frac{E}{F}it\] \[\left( \because \,\,Z=\frac{E}{F} \right)\] \[=\frac{E}{F}\times q\] \[(\because \,\,it=q)\] Given\[q=4\]coulomb \[E\] for \[Cu=31.75\] \[\therefore \] \[w=\frac{31.75}{96500}\times 4\] \[=0.0013\,\,g\]
You need to login to perform this action.
You will be redirected in
3 sec
