Redox Reactions And Electrochemistry Ques 264
Question: Three faradays electricity was passed through an aqueous solution of iron (II) bromide. The weight of iron metal (at. wt. = 56) deposited at the cathode (in gm) is [EAMCET 1991]
Options:
A) 56
B) 84
C) 112
D) 168
Show Answer
Answer:
Correct Answer: B
Solution:
$ F{e^{2+}}+2{e^{-}}\to Fe;E_{Fe}=\frac{56}{2}=28 $ $ W_{Fe}=E_{Fe} $ × Number of faraday $ =28\times 3=84gm $ .
