330090 Assertion :
The standard electrode potential of a half cell has a fixed value.
Reason :
A negative value of standard reduction potential means that reduction takes place on this electrode with reference to standard hydrogen electrode.

330091 What pressure (bar) of \({\mathrm{\mathrm{H}_{2}}}\) would be required to make emf of hydrogen electrode zero in pure water at \({\mathrm{25^{\circ} \mathrm{C}}}\) ?

330092 Two electrochemical cell \(\mathrm{Fe} / \mathrm{Fe}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\)
and \(\mathrm{Zn} / \mathrm{Zn}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\) are connected in series.
\[\left( \begin{array}{l}
{\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{/Fe}} = - \,{\rm{0}}.{\rm{41}}\;{\rm{V}},{\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}/{\rm{Zn}} = - \,{\rm{0}}{\rm{.076}}\;{\rm{V}},\\
{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}/{\rm{Cu}} = + \,{\rm{0}}{\rm{.34}}
\end{array} \right)\].
The net emf of this cell is

330093 The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

330053 Which occurs at the anode of any voltaic cell?
P. A metal is deposited on electrode.
Q. A substance undergoes oxidation.
R. Positive ions are deposited from the solution.

330090 Assertion :
The standard electrode potential of a half cell has a fixed value.
Reason :
A negative value of standard reduction potential means that reduction takes place on this electrode with reference to standard hydrogen electrode.

330091 What pressure (bar) of \({\mathrm{\mathrm{H}_{2}}}\) would be required to make emf of hydrogen electrode zero in pure water at \({\mathrm{25^{\circ} \mathrm{C}}}\) ?

330092 Two electrochemical cell \(\mathrm{Fe} / \mathrm{Fe}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\)
and \(\mathrm{Zn} / \mathrm{Zn}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\) are connected in series.
\[\left( \begin{array}{l}
{\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{/Fe}} = - \,{\rm{0}}.{\rm{41}}\;{\rm{V}},{\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}/{\rm{Zn}} = - \,{\rm{0}}{\rm{.076}}\;{\rm{V}},\\
{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}/{\rm{Cu}} = + \,{\rm{0}}{\rm{.34}}
\end{array} \right)\].
The net emf of this cell is

330093 The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

330053 Which occurs at the anode of any voltaic cell?
P. A metal is deposited on electrode.
Q. A substance undergoes oxidation.
R. Positive ions are deposited from the solution.

330090 Assertion :
The standard electrode potential of a half cell has a fixed value.
Reason :
A negative value of standard reduction potential means that reduction takes place on this electrode with reference to standard hydrogen electrode.

330091 What pressure (bar) of \({\mathrm{\mathrm{H}_{2}}}\) would be required to make emf of hydrogen electrode zero in pure water at \({\mathrm{25^{\circ} \mathrm{C}}}\) ?

330092 Two electrochemical cell \(\mathrm{Fe} / \mathrm{Fe}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\)
and \(\mathrm{Zn} / \mathrm{Zn}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\) are connected in series.
\[\left( \begin{array}{l}
{\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{/Fe}} = - \,{\rm{0}}.{\rm{41}}\;{\rm{V}},{\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}/{\rm{Zn}} = - \,{\rm{0}}{\rm{.076}}\;{\rm{V}},\\
{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}/{\rm{Cu}} = + \,{\rm{0}}{\rm{.34}}
\end{array} \right)\].
The net emf of this cell is

330093 The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

330053 Which occurs at the anode of any voltaic cell?
P. A metal is deposited on electrode.
Q. A substance undergoes oxidation.
R. Positive ions are deposited from the solution.

330090 Assertion :
The standard electrode potential of a half cell has a fixed value.
Reason :
A negative value of standard reduction potential means that reduction takes place on this electrode with reference to standard hydrogen electrode.

330091 What pressure (bar) of \({\mathrm{\mathrm{H}_{2}}}\) would be required to make emf of hydrogen electrode zero in pure water at \({\mathrm{25^{\circ} \mathrm{C}}}\) ?

330092 Two electrochemical cell \(\mathrm{Fe} / \mathrm{Fe}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\)
and \(\mathrm{Zn} / \mathrm{Zn}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\) are connected in series.
\[\left( \begin{array}{l}
{\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{/Fe}} = - \,{\rm{0}}.{\rm{41}}\;{\rm{V}},{\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}/{\rm{Zn}} = - \,{\rm{0}}{\rm{.076}}\;{\rm{V}},\\
{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}/{\rm{Cu}} = + \,{\rm{0}}{\rm{.34}}
\end{array} \right)\].
The net emf of this cell is

330093 The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

330053 Which occurs at the anode of any voltaic cell?
P. A metal is deposited on electrode.
Q. A substance undergoes oxidation.
R. Positive ions are deposited from the solution.

330090 Assertion :
The standard electrode potential of a half cell has a fixed value.
Reason :
A negative value of standard reduction potential means that reduction takes place on this electrode with reference to standard hydrogen electrode.

330091 What pressure (bar) of \({\mathrm{\mathrm{H}_{2}}}\) would be required to make emf of hydrogen electrode zero in pure water at \({\mathrm{25^{\circ} \mathrm{C}}}\) ?

330092 Two electrochemical cell \(\mathrm{Fe} / \mathrm{Fe}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\)
and \(\mathrm{Zn} / \mathrm{Zn}^{2+}\left\vert \mathrm{Cu}^{2+}\right\vert \mathrm{Cu}\) are connected in series.
\[\left( \begin{array}{l}
{\rm{F}}{{\rm{e}}^{{\rm{2 + }}}}{\rm{/Fe}} = - \,{\rm{0}}.{\rm{41}}\;{\rm{V}},{\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}/{\rm{Zn}} = - \,{\rm{0}}{\rm{.076}}\;{\rm{V}},\\
{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}/{\rm{Cu}} = + \,{\rm{0}}{\rm{.34}}
\end{array} \right)\].
The net emf of this cell is

330093 The standard electrode potential of \(\mathrm{M}^{+} / \mathrm{M}\) in aqueous solution does not depend on

330053 Which occurs at the anode of any voltaic cell?
P. A metal is deposited on electrode.
Q. A substance undergoes oxidation.
R. Positive ions are deposited from the solution.