Which of the following changes occurs during the discharging of a lead accumulator?
- A$Pb_{(s)}$ is reduced
- B$H_2 SO_4$ is consumed
- C$PbSO_4$ is consumed
- D$PbO_2$ is produced
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The $emf$ of the cell reaction is $1.1 \ V$. Calculate the free energy change for the reaction in $kJ$:
$Zn_{(s)} + Cu^{+2}_{(aq)} \longrightarrow Zn^{+2}_{(aq)} + Cu_{(s)}$
$Zn_{(s)} + Cu^{+2}_{(aq)} \longrightarrow Zn^{+2}_{(aq)} + Cu_{(s)}$
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View SolutionWhich of the following statements regarding a mercury battery is $NOT$ true?
Arrange the following metals in the order in which they displace each other from the solution of their salts: $Al$,$Cu$,$Fe$,$Mg$,and $Zn$.
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View SolutionIn $H_2-O_2$ fuel cell,the reaction occurring at the cathode is:
$A$ hypothetical electrochemical cell is shown below.
$A \,|\, A^{+} \,(x \ M)\, ||\, B^{+} \,(y \ M)\, |\, B$
The $emf$ measured is $+ 0.20 \ V.$ The cell reaction is
$A \,|\, A^{+} \,(x \ M)\, ||\, B^{+} \,(y \ M)\, |\, B$
The $emf$ measured is $+ 0.20 \ V.$ The cell reaction is
DifficultAIPMT 2006
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