Mark the false statement.
- A$A$. $A$ salt bridge is used to eliminate liquid junction potential.
- B$B$. The Gibbs free energy change,$\Delta G$ is related to electromotive force $(E)$,as $\Delta G = -nFE$.
- C$C$. The Nernst equation for single electrode potential is $E = E^o - \frac{RT}{nF} \ln a_{M^{n+}}$.
- D$D$. The efficiency of a hydrogen-oxygen fuel cell is $23 \%$.
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What is an electrolytic cell? Give its uses.
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View SolutionWhich of the following statements is $NOT$ correct for $H_2-O_2$ fuel cell?
Match List-$I$ with List-$II$:
List-$I$ (Applications) List-$II$ (Batteries/Cell) $A$. Transistors $I$. Anode $- Zn/Hg$; Cathode $- HgO + C$ $B$. Hearing aids $II$. Hydrogen fuel cell $C$. Inverters $III$. Anode $- Zn$; Cathode $- Carbon$ $D$. Apollo space ship $IV$. Anode $- Pb$; Cathode $- PbO_2$
Choose the correct answer from the options given below:
| List-$I$ (Applications) | List-$II$ (Batteries/Cell) |
|---|---|
| $A$. Transistors | $I$. Anode $- Zn/Hg$; Cathode $- HgO + C$ |
| $B$. Hearing aids | $II$. Hydrogen fuel cell |
| $C$. Inverters | $III$. Anode $- Zn$; Cathode $- Carbon$ |
| $D$. Apollo space ship | $IV$. Anode $- Pb$; Cathode $- PbO_2$ |
Choose the correct answer from the options given below:
What is the density of a solution of sulphuric acid used as an electrolyte in lead accumulators (in $g \ mL^{-1}$)?
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