Redox Reactions And Electrochemistry Ques 181

Question: The standard electrode potential of the half cells are given below Zn2++2eZn;E=7.62V, Fe2++2eFe;E=7.81V The emf of the cell Fe2++ZnZn2++Fe is [CPMT 2003]

Options:

A) 1.54 V

B) - 1.54 V

C) - 0.19 V

D) + 0.19 V

Show Answer

Answer:

Correct Answer: C

Solution:

Fe2++ZnZn2++Fe EMF=EcathodeEanode H+(0.025,M)H+(108,M) EMF=0.19,V .



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