05. Type of Cell
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ELECTROCHEMISTRY

276269 Anode reaction of a fuel cell is

1 $\mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{e}^{-}$
2 $\mathrm{Pb}(\mathrm{s})+\mathrm{SO}_{4}^{2-}(\mathrm{aq}) \longrightarrow \mathrm{PbSO}_{4}$ (s) $+2 \mathrm{e}^{-}$
3 $2 \mathrm{H}_{2}(\mathrm{~g})+4 \mathrm{OH}^{-}(\mathrm{aq}) \longrightarrow 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-}$
4 $2 \mathrm{Fe}(\mathrm{s}) \longrightarrow 2 \mathrm{Fe}^{2+}+4 \mathrm{e}^{-}$
J and K CET-(2012)
ELECTROCHEMISTRY

276281 The emf of Daniell cell at $298 \mathrm{~K}$ is $\mathrm{E}_{1}$
$\mathbf{Z n}\left \vert\mathrm{ZnSO}_{4}(\mathbf{0 . 0 1 M})\right \vert\left \vert\mathrm{CuSO}_{4}(\mathbf{1 . 0 M})\right \vert \mathrm{Cu} \text {. }^{2}$
When the concentration of $\mathrm{ZnSO}_{4}$ is $1.0 \mathrm{M}$ and that of $\mathrm{CuSO}_{4}$ is $0.01 \mathrm{M}$, the emf changed to $\mathrm{E}_{2}$ What is the relation between $E_{1}$ and $E_{2}$ ?

1 $\mathrm{E}_{1}=\mathrm{E}_{2}$
2 $\mathrm{E}_{2}=0 \neq \mathrm{E}_{2}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}$
4 $\mathrm{E}_{1}<\mathrm{E}_{2}$
AIIMS-2008
ELECTROCHEMISTRY

276253 In $\mathrm{H}_{2}-\mathrm{O}_{2}$ fuel cell the reaction occurring at cathode is

1 $2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)$
2 $\mathrm{O}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-} \longrightarrow 4 \mathrm{OH}^{-}$(aq)
3 $\mathrm{H}^{+}+\mathrm{e}^{-} \longrightarrow \frac{1}{2} \mathrm{H}_{2}$
4 $\mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}$(aq) $\longrightarrow \mathrm{H}_{2} \mathrm{O}(l)$
Karnataka-CET-2015
ELECTROCHEMISTRY

276228 Match list I with list II List-I
\vertList-I \vertList-II \vert
\vert--- \vert--- \vert
\vert(a) Li \vert(i) Absorbent for carbon dioxide \vert
\vert(b) Na \vert(ii) Electrochemical cells \vert
\vert(c) KOH \vert(iii) Coolant in fast breeder reactor \vert
\vert(d) Cs \vert(iv) Photoelectric cell \vert
Choose the correct answer from the options given below:

1 (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2 (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3 (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4 (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
NEET-17.06.2022
ELECTROCHEMISTRY

276230 $E_{1}, E_{2}, E_{3}$ are the emf values of the three galvanic cells respectively.
(i) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{0.1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(ii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(iii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{0.1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
Which one of the following is true?

1 $E_{2}>E_{3}>E_{1}$
2 $\mathrm{E}_{3}>\mathrm{E}_{2}>\mathrm{E}_{1}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}>\mathrm{E}_{3}$
4 $\mathrm{E}_{1}>\mathrm{E}_{3}>\mathrm{E}_{2}$
BCECE-2014
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

276269 Anode reaction of a fuel cell is

1 $\mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{e}^{-}$
2 $\mathrm{Pb}(\mathrm{s})+\mathrm{SO}_{4}^{2-}(\mathrm{aq}) \longrightarrow \mathrm{PbSO}_{4}$ (s) $+2 \mathrm{e}^{-}$
3 $2 \mathrm{H}_{2}(\mathrm{~g})+4 \mathrm{OH}^{-}(\mathrm{aq}) \longrightarrow 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-}$
4 $2 \mathrm{Fe}(\mathrm{s}) \longrightarrow 2 \mathrm{Fe}^{2+}+4 \mathrm{e}^{-}$
J and K CET-(2012)
ELECTROCHEMISTRY

276281 The emf of Daniell cell at $298 \mathrm{~K}$ is $\mathrm{E}_{1}$
$\mathbf{Z n}\left \vert\mathrm{ZnSO}_{4}(\mathbf{0 . 0 1 M})\right \vert\left \vert\mathrm{CuSO}_{4}(\mathbf{1 . 0 M})\right \vert \mathrm{Cu} \text {. }^{2}$
When the concentration of $\mathrm{ZnSO}_{4}$ is $1.0 \mathrm{M}$ and that of $\mathrm{CuSO}_{4}$ is $0.01 \mathrm{M}$, the emf changed to $\mathrm{E}_{2}$ What is the relation between $E_{1}$ and $E_{2}$ ?

1 $\mathrm{E}_{1}=\mathrm{E}_{2}$
2 $\mathrm{E}_{2}=0 \neq \mathrm{E}_{2}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}$
4 $\mathrm{E}_{1}<\mathrm{E}_{2}$
AIIMS-2008
ELECTROCHEMISTRY

276253 In $\mathrm{H}_{2}-\mathrm{O}_{2}$ fuel cell the reaction occurring at cathode is

1 $2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)$
2 $\mathrm{O}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-} \longrightarrow 4 \mathrm{OH}^{-}$(aq)
3 $\mathrm{H}^{+}+\mathrm{e}^{-} \longrightarrow \frac{1}{2} \mathrm{H}_{2}$
4 $\mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}$(aq) $\longrightarrow \mathrm{H}_{2} \mathrm{O}(l)$
Karnataka-CET-2015
ELECTROCHEMISTRY

276228 Match list I with list II List-I
\vertList-I \vertList-II \vert
\vert--- \vert--- \vert
\vert(a) Li \vert(i) Absorbent for carbon dioxide \vert
\vert(b) Na \vert(ii) Electrochemical cells \vert
\vert(c) KOH \vert(iii) Coolant in fast breeder reactor \vert
\vert(d) Cs \vert(iv) Photoelectric cell \vert
Choose the correct answer from the options given below:

1 (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2 (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3 (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4 (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
NEET-17.06.2022
ELECTROCHEMISTRY

276230 $E_{1}, E_{2}, E_{3}$ are the emf values of the three galvanic cells respectively.
(i) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{0.1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(ii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(iii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{0.1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
Which one of the following is true?

1 $E_{2}>E_{3}>E_{1}$
2 $\mathrm{E}_{3}>\mathrm{E}_{2}>\mathrm{E}_{1}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}>\mathrm{E}_{3}$
4 $\mathrm{E}_{1}>\mathrm{E}_{3}>\mathrm{E}_{2}$
BCECE-2014
Join With Us for More Updates
ELECTROCHEMISTRY

276269 Anode reaction of a fuel cell is

1 $\mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{e}^{-}$
2 $\mathrm{Pb}(\mathrm{s})+\mathrm{SO}_{4}^{2-}(\mathrm{aq}) \longrightarrow \mathrm{PbSO}_{4}$ (s) $+2 \mathrm{e}^{-}$
3 $2 \mathrm{H}_{2}(\mathrm{~g})+4 \mathrm{OH}^{-}(\mathrm{aq}) \longrightarrow 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-}$
4 $2 \mathrm{Fe}(\mathrm{s}) \longrightarrow 2 \mathrm{Fe}^{2+}+4 \mathrm{e}^{-}$
J and K CET-(2012)
ELECTROCHEMISTRY

276281 The emf of Daniell cell at $298 \mathrm{~K}$ is $\mathrm{E}_{1}$
$\mathbf{Z n}\left \vert\mathrm{ZnSO}_{4}(\mathbf{0 . 0 1 M})\right \vert\left \vert\mathrm{CuSO}_{4}(\mathbf{1 . 0 M})\right \vert \mathrm{Cu} \text {. }^{2}$
When the concentration of $\mathrm{ZnSO}_{4}$ is $1.0 \mathrm{M}$ and that of $\mathrm{CuSO}_{4}$ is $0.01 \mathrm{M}$, the emf changed to $\mathrm{E}_{2}$ What is the relation between $E_{1}$ and $E_{2}$ ?

1 $\mathrm{E}_{1}=\mathrm{E}_{2}$
2 $\mathrm{E}_{2}=0 \neq \mathrm{E}_{2}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}$
4 $\mathrm{E}_{1}<\mathrm{E}_{2}$
AIIMS-2008
ELECTROCHEMISTRY

276253 In $\mathrm{H}_{2}-\mathrm{O}_{2}$ fuel cell the reaction occurring at cathode is

1 $2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)$
2 $\mathrm{O}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-} \longrightarrow 4 \mathrm{OH}^{-}$(aq)
3 $\mathrm{H}^{+}+\mathrm{e}^{-} \longrightarrow \frac{1}{2} \mathrm{H}_{2}$
4 $\mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}$(aq) $\longrightarrow \mathrm{H}_{2} \mathrm{O}(l)$
Karnataka-CET-2015
ELECTROCHEMISTRY

276228 Match list I with list II List-I
\vertList-I \vertList-II \vert
\vert--- \vert--- \vert
\vert(a) Li \vert(i) Absorbent for carbon dioxide \vert
\vert(b) Na \vert(ii) Electrochemical cells \vert
\vert(c) KOH \vert(iii) Coolant in fast breeder reactor \vert
\vert(d) Cs \vert(iv) Photoelectric cell \vert
Choose the correct answer from the options given below:

1 (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2 (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3 (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4 (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
NEET-17.06.2022
ELECTROCHEMISTRY

276230 $E_{1}, E_{2}, E_{3}$ are the emf values of the three galvanic cells respectively.
(i) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{0.1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(ii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(iii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{0.1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
Which one of the following is true?

1 $E_{2}>E_{3}>E_{1}$
2 $\mathrm{E}_{3}>\mathrm{E}_{2}>\mathrm{E}_{1}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}>\mathrm{E}_{3}$
4 $\mathrm{E}_{1}>\mathrm{E}_{3}>\mathrm{E}_{2}$
BCECE-2014
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
ELECTROCHEMISTRY

276269 Anode reaction of a fuel cell is

1 $\mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{e}^{-}$
2 $\mathrm{Pb}(\mathrm{s})+\mathrm{SO}_{4}^{2-}(\mathrm{aq}) \longrightarrow \mathrm{PbSO}_{4}$ (s) $+2 \mathrm{e}^{-}$
3 $2 \mathrm{H}_{2}(\mathrm{~g})+4 \mathrm{OH}^{-}(\mathrm{aq}) \longrightarrow 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-}$
4 $2 \mathrm{Fe}(\mathrm{s}) \longrightarrow 2 \mathrm{Fe}^{2+}+4 \mathrm{e}^{-}$
J and K CET-(2012)
ELECTROCHEMISTRY

276281 The emf of Daniell cell at $298 \mathrm{~K}$ is $\mathrm{E}_{1}$
$\mathbf{Z n}\left \vert\mathrm{ZnSO}_{4}(\mathbf{0 . 0 1 M})\right \vert\left \vert\mathrm{CuSO}_{4}(\mathbf{1 . 0 M})\right \vert \mathrm{Cu} \text {. }^{2}$
When the concentration of $\mathrm{ZnSO}_{4}$ is $1.0 \mathrm{M}$ and that of $\mathrm{CuSO}_{4}$ is $0.01 \mathrm{M}$, the emf changed to $\mathrm{E}_{2}$ What is the relation between $E_{1}$ and $E_{2}$ ?

1 $\mathrm{E}_{1}=\mathrm{E}_{2}$
2 $\mathrm{E}_{2}=0 \neq \mathrm{E}_{2}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}$
4 $\mathrm{E}_{1}<\mathrm{E}_{2}$
AIIMS-2008
ELECTROCHEMISTRY

276253 In $\mathrm{H}_{2}-\mathrm{O}_{2}$ fuel cell the reaction occurring at cathode is

1 $2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)$
2 $\mathrm{O}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-} \longrightarrow 4 \mathrm{OH}^{-}$(aq)
3 $\mathrm{H}^{+}+\mathrm{e}^{-} \longrightarrow \frac{1}{2} \mathrm{H}_{2}$
4 $\mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}$(aq) $\longrightarrow \mathrm{H}_{2} \mathrm{O}(l)$
Karnataka-CET-2015
ELECTROCHEMISTRY

276228 Match list I with list II List-I
\vertList-I \vertList-II \vert
\vert--- \vert--- \vert
\vert(a) Li \vert(i) Absorbent for carbon dioxide \vert
\vert(b) Na \vert(ii) Electrochemical cells \vert
\vert(c) KOH \vert(iii) Coolant in fast breeder reactor \vert
\vert(d) Cs \vert(iv) Photoelectric cell \vert
Choose the correct answer from the options given below:

1 (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2 (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3 (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4 (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
NEET-17.06.2022
ELECTROCHEMISTRY

276230 $E_{1}, E_{2}, E_{3}$ are the emf values of the three galvanic cells respectively.
(i) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{0.1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(ii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(iii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{0.1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
Which one of the following is true?

1 $E_{2}>E_{3}>E_{1}$
2 $\mathrm{E}_{3}>\mathrm{E}_{2}>\mathrm{E}_{1}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}>\mathrm{E}_{3}$
4 $\mathrm{E}_{1}>\mathrm{E}_{3}>\mathrm{E}_{2}$
BCECE-2014
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

276269 Anode reaction of a fuel cell is

1 $\mathrm{Zn}(\mathrm{Hg})+2 \mathrm{OH}^{-} \rightarrow \mathrm{ZnO}(\mathrm{s})+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{e}^{-}$
2 $\mathrm{Pb}(\mathrm{s})+\mathrm{SO}_{4}^{2-}(\mathrm{aq}) \longrightarrow \mathrm{PbSO}_{4}$ (s) $+2 \mathrm{e}^{-}$
3 $2 \mathrm{H}_{2}(\mathrm{~g})+4 \mathrm{OH}^{-}(\mathrm{aq}) \longrightarrow 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-}$
4 $2 \mathrm{Fe}(\mathrm{s}) \longrightarrow 2 \mathrm{Fe}^{2+}+4 \mathrm{e}^{-}$
J and K CET-(2012)
ELECTROCHEMISTRY

276281 The emf of Daniell cell at $298 \mathrm{~K}$ is $\mathrm{E}_{1}$
$\mathbf{Z n}\left \vert\mathrm{ZnSO}_{4}(\mathbf{0 . 0 1 M})\right \vert\left \vert\mathrm{CuSO}_{4}(\mathbf{1 . 0 M})\right \vert \mathrm{Cu} \text {. }^{2}$
When the concentration of $\mathrm{ZnSO}_{4}$ is $1.0 \mathrm{M}$ and that of $\mathrm{CuSO}_{4}$ is $0.01 \mathrm{M}$, the emf changed to $\mathrm{E}_{2}$ What is the relation between $E_{1}$ and $E_{2}$ ?

1 $\mathrm{E}_{1}=\mathrm{E}_{2}$
2 $\mathrm{E}_{2}=0 \neq \mathrm{E}_{2}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}$
4 $\mathrm{E}_{1}<\mathrm{E}_{2}$
AIIMS-2008
ELECTROCHEMISTRY

276253 In $\mathrm{H}_{2}-\mathrm{O}_{2}$ fuel cell the reaction occurring at cathode is

1 $2 \mathrm{H}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(l)$
2 $\mathrm{O}_{2}(\mathrm{~g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})+4 \mathrm{e}^{-} \longrightarrow 4 \mathrm{OH}^{-}$(aq)
3 $\mathrm{H}^{+}+\mathrm{e}^{-} \longrightarrow \frac{1}{2} \mathrm{H}_{2}$
4 $\mathrm{H}^{+}(\mathrm{aq})+\mathrm{OH}^{-}$(aq) $\longrightarrow \mathrm{H}_{2} \mathrm{O}(l)$
Karnataka-CET-2015
ELECTROCHEMISTRY

276228 Match list I with list II List-I
\vertList-I \vertList-II \vert
\vert--- \vert--- \vert
\vert(a) Li \vert(i) Absorbent for carbon dioxide \vert
\vert(b) Na \vert(ii) Electrochemical cells \vert
\vert(c) KOH \vert(iii) Coolant in fast breeder reactor \vert
\vert(d) Cs \vert(iv) Photoelectric cell \vert
Choose the correct answer from the options given below:

1 (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
2 (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
3 (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)
4 (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
NEET-17.06.2022
ELECTROCHEMISTRY

276230 $E_{1}, E_{2}, E_{3}$ are the emf values of the three galvanic cells respectively.
(i) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{0.1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(ii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
(iii) $\mathrm{Zn}\left \vert\mathrm{Zn}_{0.1 \mathrm{M}}^{2+}\right \vert\left \vert\mathrm{Cu}_{1 \mathrm{M}}^{2+}\right \vert \mathrm{Cu}$
Which one of the following is true?

1 $E_{2}>E_{3}>E_{1}$
2 $\mathrm{E}_{3}>\mathrm{E}_{2}>\mathrm{E}_{1}$
3 $\mathrm{E}_{1}>\mathrm{E}_{2}>\mathrm{E}_{3}$
4 $\mathrm{E}_{1}>\mathrm{E}_{3}>\mathrm{E}_{2}$
BCECE-2014