Redox Reactions And Electrochemistry Ques 143

Question: EMF of cell Ni|Ni2+,(1.0,M)||Au3+,(1.0,M)|Au (Where Eo for Ni2+|Ni is 0.25V;Eo for Au+3,,|Au is 1.50V) is [MP PET 1993; MP PMT 2000]

Options:

A) + 1.25 V

B) ,1.75V

C) + 1.75 V

D) + 4.0 V

Show Answer

Answer:

Correct Answer: C

Solution:

Ecell=EAu3+/AuoENi2+/Nio =1.50(0.25)=1.75 V.



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