Mark the false statement - Vidyadip

MCQ

Mark the false statement

A
A salt bridge is used to eliminate liquid junction potential
B
The Gibbs free energy change, $\Delta G$ is related with electromotive force $(E)$, as $\Delta G = - nFE$
C
Nernst equation for single electrode potential is $E = {E^o} - \frac{{RT}}{{nF}}\,\ln \,{a_{{M^{n + }}}}$
✓
The efficiency of a hydrogen oxygen fuel cell is $ 23\%$

✓

Answer

Correct option: D.

The efficiency of a hydrogen oxygen fuel cell is $ 23\%$

d
(d) Practically only $60-70\% $ efficiency has been attained.

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