00. Electrode Potential
« First Topic in Next Topic: 01. Faraday's Law »
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

275821 For the electrochemical cell,
$\mathrm{Ag}^{+} \vert\mathrm{AgCl} \vert \mathrm{KCl} \vert \vert \mathrm{AgNO}_{3} \mid \mathbf{A g}^{+}$, the overall cell reaction is

1 $\mathrm{Ag}^{+}+\mathrm{KCl} \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{K}^{+}$
2 $\mathrm{Ag}+\mathrm{AgCl} \rightarrow 2 \mathrm{Ag}+\frac{1}{2} \mathrm{Cl}_{2}$
3 $\mathrm{AgCl}(\mathrm{s}) \rightarrow \mathrm{Ag}^{+}+\mathrm{Cl}^{-}$
4 $\mathrm{Ag}^{+}+\mathrm{Cl}^{-} \rightarrow \mathrm{AgCl}(\mathrm{s})$
JIPMER-2018
ELECTROCHEMISTRY

275822 If $\mathrm{E}^{0}\left(\mathrm{Zn}^{2+}, \mathrm{Zn}\right)=-0.763 \mathrm{~V}$ and $\mathrm{E}^{0}\left(\mathrm{Fe}^{2+}, \mathrm{Fe}\right)=$ $-0.44 \mathrm{~V}$, then the emf of the cell $\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{a}=$ 0.001) $\left \vert\operatorname{Fe}^{2+}(\mathrm{a}=0.005)\right \vert \mathrm{Fe}$ is

1 equal to $0.323 \mathrm{~V}$
2 less than $0.323 \mathrm{~V}$
3 greater than $0.323 \mathrm{~V}$
4 equal to $1.103 \mathrm{~V}$
JIPMER-2018
ELECTROCHEMISTRY

275823 For a cell involving two electron changes, $\mathrm{E}_{\text {cell }}^{\mathrm{o}}=0.3 \mathrm{~V}$ at $25^{\circ} \mathrm{C}$. The equilibrium constant of the reaction is

1 $10^{-10}$
2 $3 \times 10^{-2}$
3 10
4 $10^{10}$
Karnataka-CET-2018
ELECTROCHEMISTRY

275819 Assertion: When I M CusO ${ }_{4}$ (aq) solution is electrolysed using copper electrodes, copper is dissolved at anode and copper gets deposites at cathode.
Reason: The standard oxidation potential of copper is less than the standard oxidation potential of water and standard reduction potential of copper is greater than the standard reduction potential of water.

1 If Assertion is correct but Reason is in correct.
2 If both the Assertion and Reason are incorrect.
3 If both Assertion and Reason are correct and the Reason is the correct explanation of Assertion.
4 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
AIIMS-26 May
Join With Us for More Updates
ELECTROCHEMISTRY

275821 For the electrochemical cell,
$\mathrm{Ag}^{+} \vert\mathrm{AgCl} \vert \mathrm{KCl} \vert \vert \mathrm{AgNO}_{3} \mid \mathbf{A g}^{+}$, the overall cell reaction is

1 $\mathrm{Ag}^{+}+\mathrm{KCl} \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{K}^{+}$
2 $\mathrm{Ag}+\mathrm{AgCl} \rightarrow 2 \mathrm{Ag}+\frac{1}{2} \mathrm{Cl}_{2}$
3 $\mathrm{AgCl}(\mathrm{s}) \rightarrow \mathrm{Ag}^{+}+\mathrm{Cl}^{-}$
4 $\mathrm{Ag}^{+}+\mathrm{Cl}^{-} \rightarrow \mathrm{AgCl}(\mathrm{s})$
JIPMER-2018
ELECTROCHEMISTRY

275822 If $\mathrm{E}^{0}\left(\mathrm{Zn}^{2+}, \mathrm{Zn}\right)=-0.763 \mathrm{~V}$ and $\mathrm{E}^{0}\left(\mathrm{Fe}^{2+}, \mathrm{Fe}\right)=$ $-0.44 \mathrm{~V}$, then the emf of the cell $\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{a}=$ 0.001) $\left \vert\operatorname{Fe}^{2+}(\mathrm{a}=0.005)\right \vert \mathrm{Fe}$ is

1 equal to $0.323 \mathrm{~V}$
2 less than $0.323 \mathrm{~V}$
3 greater than $0.323 \mathrm{~V}$
4 equal to $1.103 \mathrm{~V}$
JIPMER-2018
ELECTROCHEMISTRY

275823 For a cell involving two electron changes, $\mathrm{E}_{\text {cell }}^{\mathrm{o}}=0.3 \mathrm{~V}$ at $25^{\circ} \mathrm{C}$. The equilibrium constant of the reaction is

1 $10^{-10}$
2 $3 \times 10^{-2}$
3 10
4 $10^{10}$
Karnataka-CET-2018
ELECTROCHEMISTRY

275819 Assertion: When I M CusO ${ }_{4}$ (aq) solution is electrolysed using copper electrodes, copper is dissolved at anode and copper gets deposites at cathode.
Reason: The standard oxidation potential of copper is less than the standard oxidation potential of water and standard reduction potential of copper is greater than the standard reduction potential of water.

1 If Assertion is correct but Reason is in correct.
2 If both the Assertion and Reason are incorrect.
3 If both Assertion and Reason are correct and the Reason is the correct explanation of Assertion.
4 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
AIIMS-26 May
For More Updates join with Us
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
ELECTROCHEMISTRY

275821 For the electrochemical cell,
$\mathrm{Ag}^{+} \vert\mathrm{AgCl} \vert \mathrm{KCl} \vert \vert \mathrm{AgNO}_{3} \mid \mathbf{A g}^{+}$, the overall cell reaction is

1 $\mathrm{Ag}^{+}+\mathrm{KCl} \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{K}^{+}$
2 $\mathrm{Ag}+\mathrm{AgCl} \rightarrow 2 \mathrm{Ag}+\frac{1}{2} \mathrm{Cl}_{2}$
3 $\mathrm{AgCl}(\mathrm{s}) \rightarrow \mathrm{Ag}^{+}+\mathrm{Cl}^{-}$
4 $\mathrm{Ag}^{+}+\mathrm{Cl}^{-} \rightarrow \mathrm{AgCl}(\mathrm{s})$
JIPMER-2018
ELECTROCHEMISTRY

275822 If $\mathrm{E}^{0}\left(\mathrm{Zn}^{2+}, \mathrm{Zn}\right)=-0.763 \mathrm{~V}$ and $\mathrm{E}^{0}\left(\mathrm{Fe}^{2+}, \mathrm{Fe}\right)=$ $-0.44 \mathrm{~V}$, then the emf of the cell $\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{a}=$ 0.001) $\left \vert\operatorname{Fe}^{2+}(\mathrm{a}=0.005)\right \vert \mathrm{Fe}$ is

1 equal to $0.323 \mathrm{~V}$
2 less than $0.323 \mathrm{~V}$
3 greater than $0.323 \mathrm{~V}$
4 equal to $1.103 \mathrm{~V}$
JIPMER-2018
ELECTROCHEMISTRY

275823 For a cell involving two electron changes, $\mathrm{E}_{\text {cell }}^{\mathrm{o}}=0.3 \mathrm{~V}$ at $25^{\circ} \mathrm{C}$. The equilibrium constant of the reaction is

1 $10^{-10}$
2 $3 \times 10^{-2}$
3 10
4 $10^{10}$
Karnataka-CET-2018
ELECTROCHEMISTRY

275819 Assertion: When I M CusO ${ }_{4}$ (aq) solution is electrolysed using copper electrodes, copper is dissolved at anode and copper gets deposites at cathode.
Reason: The standard oxidation potential of copper is less than the standard oxidation potential of water and standard reduction potential of copper is greater than the standard reduction potential of water.

1 If Assertion is correct but Reason is in correct.
2 If both the Assertion and Reason are incorrect.
3 If both Assertion and Reason are correct and the Reason is the correct explanation of Assertion.
4 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
AIIMS-26 May
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

275821 For the electrochemical cell,
$\mathrm{Ag}^{+} \vert\mathrm{AgCl} \vert \mathrm{KCl} \vert \vert \mathrm{AgNO}_{3} \mid \mathbf{A g}^{+}$, the overall cell reaction is

1 $\mathrm{Ag}^{+}+\mathrm{KCl} \rightarrow \mathrm{AgCl}(\mathrm{s})+\mathrm{K}^{+}$
2 $\mathrm{Ag}+\mathrm{AgCl} \rightarrow 2 \mathrm{Ag}+\frac{1}{2} \mathrm{Cl}_{2}$
3 $\mathrm{AgCl}(\mathrm{s}) \rightarrow \mathrm{Ag}^{+}+\mathrm{Cl}^{-}$
4 $\mathrm{Ag}^{+}+\mathrm{Cl}^{-} \rightarrow \mathrm{AgCl}(\mathrm{s})$
JIPMER-2018
ELECTROCHEMISTRY

275822 If $\mathrm{E}^{0}\left(\mathrm{Zn}^{2+}, \mathrm{Zn}\right)=-0.763 \mathrm{~V}$ and $\mathrm{E}^{0}\left(\mathrm{Fe}^{2+}, \mathrm{Fe}\right)=$ $-0.44 \mathrm{~V}$, then the emf of the cell $\mathrm{Zn} \mid \mathrm{Zn}^{2+}(\mathrm{a}=$ 0.001) $\left \vert\operatorname{Fe}^{2+}(\mathrm{a}=0.005)\right \vert \mathrm{Fe}$ is

1 equal to $0.323 \mathrm{~V}$
2 less than $0.323 \mathrm{~V}$
3 greater than $0.323 \mathrm{~V}$
4 equal to $1.103 \mathrm{~V}$
JIPMER-2018
ELECTROCHEMISTRY

275823 For a cell involving two electron changes, $\mathrm{E}_{\text {cell }}^{\mathrm{o}}=0.3 \mathrm{~V}$ at $25^{\circ} \mathrm{C}$. The equilibrium constant of the reaction is

1 $10^{-10}$
2 $3 \times 10^{-2}$
3 10
4 $10^{10}$
Karnataka-CET-2018
ELECTROCHEMISTRY

275819 Assertion: When I M CusO ${ }_{4}$ (aq) solution is electrolysed using copper electrodes, copper is dissolved at anode and copper gets deposites at cathode.
Reason: The standard oxidation potential of copper is less than the standard oxidation potential of water and standard reduction potential of copper is greater than the standard reduction potential of water.

1 If Assertion is correct but Reason is in correct.
2 If both the Assertion and Reason are incorrect.
3 If both Assertion and Reason are correct and the Reason is the correct explanation of Assertion.
4 If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion.
AIIMS-26 May
Join With Us for More Updates