00. Electrode Potential
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ELECTROCHEMISTRY

275921 In view of the signs of $\Delta_{\mathrm{r}} G^{0}$ for the following reactions
$\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}<0$
$\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}>0$
Which oxidation states are more characteristic for lead and tin?

1 For lead +4 , for tin +2
2 For lead +2 , for tin +2
3 For lead +4 , for tin +4
4 For lead +2 , for tin +4
AIEEE 2011
ELECTROCHEMISTRY

275922 The reduction potential of hydrogen half-cell will be negative if

1 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
2 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
3 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
4 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
AIEEE 2011
ELECTROCHEMISTRY

275924 The emf of a cell with $1 \mathrm{M}$ solutions of reactants and products in solution measured at $25^{\circ} \mathrm{C}$ is called

1 half cell potential
2 standard emf
3 single electrode potential
4 redox potential.
SRMJEEE - 2011
ELECTROCHEMISTRY

275925 Match the following lists.
$\begin{array}{l \vertl}
\hline \text { List I } & \text { List II } \\
\hline \begin{array}{l}
\text { (A) } \begin{array}{l}
\text { Potential of } \\
\text { hydrogen } \\
\text { electrode at } \mathbf{p H}=10
\end{array} \\
\text { (B) } \mathrm{Cu}^{2+} \mid \mathrm{Cu}
\end{array} & \text { (I) } 0.76 \mathrm{~V} \\
\text { (C) } \mathrm{Zn} \mid \mathrm{Zn}^{2+} & \text { (III) }-\mathbf{0 . 5 9 1} \mathrm{V} \\
\text { (D) } \frac{2.303 \mathrm{RT}}{\mathrm{F}} & \text { (IV) } 0.337 \mathrm{~V} \\
& \text { (V) }-\mathbf{0 . 7 6} \mathrm{V} \\
\hline
\end{array}$

1 A - (III),B - (I),C - (II),D - (V)
2 A - (II),B - (V) ,C - (I) ,D - (IV)
3 A - (III),B - (IV) ,C - (I) ,D - (II)
4 A - (V) ,B - (I) ,C - (IV) ,D - (II)
AP-EAMCET- (Engg.)-2011
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ELECTROCHEMISTRY

275921 In view of the signs of $\Delta_{\mathrm{r}} G^{0}$ for the following reactions
$\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}<0$
$\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}>0$
Which oxidation states are more characteristic for lead and tin?

1 For lead +4 , for tin +2
2 For lead +2 , for tin +2
3 For lead +4 , for tin +4
4 For lead +2 , for tin +4
AIEEE 2011
ELECTROCHEMISTRY

275922 The reduction potential of hydrogen half-cell will be negative if

1 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
2 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
3 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
4 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
AIEEE 2011
ELECTROCHEMISTRY

275924 The emf of a cell with $1 \mathrm{M}$ solutions of reactants and products in solution measured at $25^{\circ} \mathrm{C}$ is called

1 half cell potential
2 standard emf
3 single electrode potential
4 redox potential.
SRMJEEE - 2011
ELECTROCHEMISTRY

275925 Match the following lists.
$\begin{array}{l \vertl}
\hline \text { List I } & \text { List II } \\
\hline \begin{array}{l}
\text { (A) } \begin{array}{l}
\text { Potential of } \\
\text { hydrogen } \\
\text { electrode at } \mathbf{p H}=10
\end{array} \\
\text { (B) } \mathrm{Cu}^{2+} \mid \mathrm{Cu}
\end{array} & \text { (I) } 0.76 \mathrm{~V} \\
\text { (C) } \mathrm{Zn} \mid \mathrm{Zn}^{2+} & \text { (III) }-\mathbf{0 . 5 9 1} \mathrm{V} \\
\text { (D) } \frac{2.303 \mathrm{RT}}{\mathrm{F}} & \text { (IV) } 0.337 \mathrm{~V} \\
& \text { (V) }-\mathbf{0 . 7 6} \mathrm{V} \\
\hline
\end{array}$

1 A - (III),B - (I),C - (II),D - (V)
2 A - (II),B - (V) ,C - (I) ,D - (IV)
3 A - (III),B - (IV) ,C - (I) ,D - (II)
4 A - (V) ,B - (I) ,C - (IV) ,D - (II)
AP-EAMCET- (Engg.)-2011
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

275921 In view of the signs of $\Delta_{\mathrm{r}} G^{0}$ for the following reactions
$\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}<0$
$\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}>0$
Which oxidation states are more characteristic for lead and tin?

1 For lead +4 , for tin +2
2 For lead +2 , for tin +2
3 For lead +4 , for tin +4
4 For lead +2 , for tin +4
AIEEE 2011
ELECTROCHEMISTRY

275922 The reduction potential of hydrogen half-cell will be negative if

1 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
2 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
3 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
4 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
AIEEE 2011
ELECTROCHEMISTRY

275924 The emf of a cell with $1 \mathrm{M}$ solutions of reactants and products in solution measured at $25^{\circ} \mathrm{C}$ is called

1 half cell potential
2 standard emf
3 single electrode potential
4 redox potential.
SRMJEEE - 2011
ELECTROCHEMISTRY

275925 Match the following lists.
$\begin{array}{l \vertl}
\hline \text { List I } & \text { List II } \\
\hline \begin{array}{l}
\text { (A) } \begin{array}{l}
\text { Potential of } \\
\text { hydrogen } \\
\text { electrode at } \mathbf{p H}=10
\end{array} \\
\text { (B) } \mathrm{Cu}^{2+} \mid \mathrm{Cu}
\end{array} & \text { (I) } 0.76 \mathrm{~V} \\
\text { (C) } \mathrm{Zn} \mid \mathrm{Zn}^{2+} & \text { (III) }-\mathbf{0 . 5 9 1} \mathrm{V} \\
\text { (D) } \frac{2.303 \mathrm{RT}}{\mathrm{F}} & \text { (IV) } 0.337 \mathrm{~V} \\
& \text { (V) }-\mathbf{0 . 7 6} \mathrm{V} \\
\hline
\end{array}$

1 A - (III),B - (I),C - (II),D - (V)
2 A - (II),B - (V) ,C - (I) ,D - (IV)
3 A - (III),B - (IV) ,C - (I) ,D - (II)
4 A - (V) ,B - (I) ,C - (IV) ,D - (II)
AP-EAMCET- (Engg.)-2011
Join With Us for More Updates
ELECTROCHEMISTRY

275921 In view of the signs of $\Delta_{\mathrm{r}} G^{0}$ for the following reactions
$\mathrm{PbO}_{2}+\mathrm{Pb} \rightarrow 2 \mathrm{PbO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}<0$
$\mathrm{SnO}_{2}+\mathrm{Sn} \rightarrow 2 \mathrm{SnO}, \Delta_{\mathrm{r}} \mathrm{G}^{0}>0$
Which oxidation states are more characteristic for lead and tin?

1 For lead +4 , for tin +2
2 For lead +2 , for tin +2
3 For lead +4 , for tin +4
4 For lead +2 , for tin +4
AIEEE 2011
ELECTROCHEMISTRY

275922 The reduction potential of hydrogen half-cell will be negative if

1 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
2 $\mathrm{P}_{\mathrm{H}_{2}}=1 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
3 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=1.0 \mathrm{M}$
4 $\mathrm{P}_{\mathrm{H}_{2}}=2 \mathrm{~atm}$ and $\left[\mathrm{H}^{+}\right]=2.0 \mathrm{M}$
AIEEE 2011
ELECTROCHEMISTRY

275924 The emf of a cell with $1 \mathrm{M}$ solutions of reactants and products in solution measured at $25^{\circ} \mathrm{C}$ is called

1 half cell potential
2 standard emf
3 single electrode potential
4 redox potential.
SRMJEEE - 2011
ELECTROCHEMISTRY

275925 Match the following lists.
$\begin{array}{l \vertl}
\hline \text { List I } & \text { List II } \\
\hline \begin{array}{l}
\text { (A) } \begin{array}{l}
\text { Potential of } \\
\text { hydrogen } \\
\text { electrode at } \mathbf{p H}=10
\end{array} \\
\text { (B) } \mathrm{Cu}^{2+} \mid \mathrm{Cu}
\end{array} & \text { (I) } 0.76 \mathrm{~V} \\
\text { (C) } \mathrm{Zn} \mid \mathrm{Zn}^{2+} & \text { (III) }-\mathbf{0 . 5 9 1} \mathrm{V} \\
\text { (D) } \frac{2.303 \mathrm{RT}}{\mathrm{F}} & \text { (IV) } 0.337 \mathrm{~V} \\
& \text { (V) }-\mathbf{0 . 7 6} \mathrm{V} \\
\hline
\end{array}$

1 A - (III),B - (I),C - (II),D - (V)
2 A - (II),B - (V) ,C - (I) ,D - (IV)
3 A - (III),B - (IV) ,C - (I) ,D - (II)
4 A - (V) ,B - (I) ,C - (IV) ,D - (II)
AP-EAMCET- (Engg.)-2011
For More Updates join with Us