Redox Reactions And Electrochemistry Ques 283
Question: When 0.04 faraday of electricity is passed through a solution of $ CaSO_4 $ , then the weight of $ C{a^{2+}} $ metal deposited at the cathode is [BHU 1996]
Options:
A) 0.2 gm
B) 0.4 gm
C) 0.6 gm
D) 0.8 gm
Show Answer
Answer:
Correct Answer: D
Solution:
$ C{a^{++}}+2{e^{-}}\to Ca $ $ E_{Ca}=\frac{40}{2}=20 $ $ W_{Ca}=E_{Ca} $ × No. of faradays $ =20\times 0.04=0.8,gm $ .
