Redox Reactions And Electrochemistry Ques 269

Question: What weight of copper will be deposited by passing 2 Faradays of electricity through a cupric salt (Atomic weight of Cu = 63.5) [NCERT 1975; CPMT 1977, 79]

Options:

A) 2.0 gm

B) 3.175 gm

C) 63.5 gm

D) 127.0 gm

Show Answer

Answer:

Correct Answer: C

Solution:

$ C{u^{2+}}+2{e^{-}}\to Cu $ 2 Faradays will deposit $ =1,g,atomofCu=63.5,g $ .



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