Mark the false statement? (a) A salt bridge is used to eliminate liquid junction potential (b) Th...

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Mark the false statement?
(a) A salt bridge is used to eliminate liquid junction potential
(b) The Gibbs free energy change, ΔG is related with electromotive force E as ΔG=-nFE
(c) Nernst equation for single electrode potential is E=E^o-RT/nFlog _aM^n+
(d) The efficiency of a hydrogen-oxygen fuel cell is 23 %

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