Redox Reactions And Electrochemistry Ques 280
Question: To deposit 0.6354 gm of copper by electrolysis of aqueous cupric sulphate solution, the amount of electricity required (in coulombs) is [MP PMT 1989]
Options:
A) 9650
B) 4825
C) 3860
D) 1930
Show Answer
Answer:
Correct Answer: D
Solution:
$ C{u^{++}}+2{e^{-}}\to Cu $ $ E_{Cu}=\frac{63.54}{2}=31.77 $ Amount of electricity required to deposit .6354 gm of Cu $ =\frac{96500\times 0.6354}{31.77}=1930,Coulombs $ .
