05. Type of Cell
ELECTROCHEMISTRY

276270 A cell is constructed by coupling the two electrodes $\mathrm{Sn} / \mathbf{S n}^{2+}$ and $\mathbf{C u} / \mathbf{C u}^{2+}$. If $\mathbf{E}^{\mathbf{0}}\left(\mathbf{S n}^{2+}\right.$, $\mathrm{Sn}), \mathrm{E}^{\mathbf{0}}\left(\mathrm{Cu}^{2+}, \mathrm{Cu}\right)$, and $\mathrm{E}_{\text {cell }}^{0}$ are $-0.14 \mathrm{~V}, 0.34$ $\mathrm{V}$ and $0.48 \mathrm{~V}$ respectively, the correct representation of the cell is

1 $\mathrm{Sn}_{\text {(s) }}\left \vert\mathrm{Sn}^{2+}(0.1 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
2 $\operatorname{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{(\mathrm{s})}$
3 $\mathrm{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
4 $\mathrm{Cu}_{(\mathrm{s})}\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Sn}_{(\mathrm{s})}$
ELECTROCHEMISTRY

276275 Cell reaction is spontaneous, when

1 $\mathrm{E}_{\text {red }}^{\circ}$ is negative
2 $\mathrm{E}_{\text {red }}^{\circ}$ is positive
3 $\Delta \mathrm{G}^{\circ}$ is negative
4 $\Delta \mathrm{G}^{\circ}$ is positive
ELECTROCHEMISTRY

276279 The electrolyte in lead storage battery is dilute sulphuric acid. The concentration of sulphuric acid in a lead-storage battery must be between 4.8 $M$ and 5.3 $M$ for most efficient functioning A $5 \mathrm{~mL}$ sulphuric acid sample of a particular battery requires $50 \mathrm{~mL}$ of $1.0 \mathrm{M} \mathrm{NaOH}$ for complete neutralisation. Which of the following statements about the functioning of battery is the most appropriate?

1 The acid concentration in the battery is not in the most effective range
2 The acid concentration in the battery is in the most effective range
3 The acid concentration in the battery is hardly in the most effective range
4 Only a good mechanic can tell whether or not the acid concentration in the battery is in the most effective range
ELECTROCHEMISTRY

276282 The chemical reaction,
$2 \mathrm{AgCl}(\mathrm{s})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{HCl}_{(\mathrm{aq})}+2 \mathrm{Ag}_{(\mathrm{s})}$
taking place in a galvanic cell is represented by the notation:

1 $\mathrm{Pt}_{(\mathrm{s})} \mid \mathrm{H}_{2(\mathrm{~g})}, 1$ bar $\left \vert1 \mathrm{MKCl}_{(\mathrm{aq})}\right \vert \operatorname{AgCl}_{(\mathrm{S})} \mid \operatorname{Ag}_{(\mathrm{s})}$
2 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \mathrm{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert1 \mathrm{MAg}_{(\mathrm{aq})}^{+}\right \vert \mathrm{Ag}_{(\mathrm{s})}$
3 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{AgCl}_{(\mathrm{s})}\right \vert \operatorname{Ag}_{(\mathrm{s})}$
4 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{Ag}_{(\mathrm{s})}\right \vert \operatorname{AgCl}_{(\mathrm{S})}$
ELECTROCHEMISTRY

276270 A cell is constructed by coupling the two electrodes $\mathrm{Sn} / \mathbf{S n}^{2+}$ and $\mathbf{C u} / \mathbf{C u}^{2+}$. If $\mathbf{E}^{\mathbf{0}}\left(\mathbf{S n}^{2+}\right.$, $\mathrm{Sn}), \mathrm{E}^{\mathbf{0}}\left(\mathrm{Cu}^{2+}, \mathrm{Cu}\right)$, and $\mathrm{E}_{\text {cell }}^{0}$ are $-0.14 \mathrm{~V}, 0.34$ $\mathrm{V}$ and $0.48 \mathrm{~V}$ respectively, the correct representation of the cell is

1 $\mathrm{Sn}_{\text {(s) }}\left \vert\mathrm{Sn}^{2+}(0.1 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
2 $\operatorname{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{(\mathrm{s})}$
3 $\mathrm{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
4 $\mathrm{Cu}_{(\mathrm{s})}\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Sn}_{(\mathrm{s})}$
ELECTROCHEMISTRY

276275 Cell reaction is spontaneous, when

1 $\mathrm{E}_{\text {red }}^{\circ}$ is negative
2 $\mathrm{E}_{\text {red }}^{\circ}$ is positive
3 $\Delta \mathrm{G}^{\circ}$ is negative
4 $\Delta \mathrm{G}^{\circ}$ is positive
ELECTROCHEMISTRY

276279 The electrolyte in lead storage battery is dilute sulphuric acid. The concentration of sulphuric acid in a lead-storage battery must be between 4.8 $M$ and 5.3 $M$ for most efficient functioning A $5 \mathrm{~mL}$ sulphuric acid sample of a particular battery requires $50 \mathrm{~mL}$ of $1.0 \mathrm{M} \mathrm{NaOH}$ for complete neutralisation. Which of the following statements about the functioning of battery is the most appropriate?

1 The acid concentration in the battery is not in the most effective range
2 The acid concentration in the battery is in the most effective range
3 The acid concentration in the battery is hardly in the most effective range
4 Only a good mechanic can tell whether or not the acid concentration in the battery is in the most effective range
ELECTROCHEMISTRY

276282 The chemical reaction,
$2 \mathrm{AgCl}(\mathrm{s})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{HCl}_{(\mathrm{aq})}+2 \mathrm{Ag}_{(\mathrm{s})}$
taking place in a galvanic cell is represented by the notation:

1 $\mathrm{Pt}_{(\mathrm{s})} \mid \mathrm{H}_{2(\mathrm{~g})}, 1$ bar $\left \vert1 \mathrm{MKCl}_{(\mathrm{aq})}\right \vert \operatorname{AgCl}_{(\mathrm{S})} \mid \operatorname{Ag}_{(\mathrm{s})}$
2 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \mathrm{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert1 \mathrm{MAg}_{(\mathrm{aq})}^{+}\right \vert \mathrm{Ag}_{(\mathrm{s})}$
3 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{AgCl}_{(\mathrm{s})}\right \vert \operatorname{Ag}_{(\mathrm{s})}$
4 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{Ag}_{(\mathrm{s})}\right \vert \operatorname{AgCl}_{(\mathrm{S})}$
ELECTROCHEMISTRY

276270 A cell is constructed by coupling the two electrodes $\mathrm{Sn} / \mathbf{S n}^{2+}$ and $\mathbf{C u} / \mathbf{C u}^{2+}$. If $\mathbf{E}^{\mathbf{0}}\left(\mathbf{S n}^{2+}\right.$, $\mathrm{Sn}), \mathrm{E}^{\mathbf{0}}\left(\mathrm{Cu}^{2+}, \mathrm{Cu}\right)$, and $\mathrm{E}_{\text {cell }}^{0}$ are $-0.14 \mathrm{~V}, 0.34$ $\mathrm{V}$ and $0.48 \mathrm{~V}$ respectively, the correct representation of the cell is

1 $\mathrm{Sn}_{\text {(s) }}\left \vert\mathrm{Sn}^{2+}(0.1 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
2 $\operatorname{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{(\mathrm{s})}$
3 $\mathrm{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
4 $\mathrm{Cu}_{(\mathrm{s})}\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Sn}_{(\mathrm{s})}$
ELECTROCHEMISTRY

276275 Cell reaction is spontaneous, when

1 $\mathrm{E}_{\text {red }}^{\circ}$ is negative
2 $\mathrm{E}_{\text {red }}^{\circ}$ is positive
3 $\Delta \mathrm{G}^{\circ}$ is negative
4 $\Delta \mathrm{G}^{\circ}$ is positive
ELECTROCHEMISTRY

276279 The electrolyte in lead storage battery is dilute sulphuric acid. The concentration of sulphuric acid in a lead-storage battery must be between 4.8 $M$ and 5.3 $M$ for most efficient functioning A $5 \mathrm{~mL}$ sulphuric acid sample of a particular battery requires $50 \mathrm{~mL}$ of $1.0 \mathrm{M} \mathrm{NaOH}$ for complete neutralisation. Which of the following statements about the functioning of battery is the most appropriate?

1 The acid concentration in the battery is not in the most effective range
2 The acid concentration in the battery is in the most effective range
3 The acid concentration in the battery is hardly in the most effective range
4 Only a good mechanic can tell whether or not the acid concentration in the battery is in the most effective range
ELECTROCHEMISTRY

276282 The chemical reaction,
$2 \mathrm{AgCl}(\mathrm{s})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{HCl}_{(\mathrm{aq})}+2 \mathrm{Ag}_{(\mathrm{s})}$
taking place in a galvanic cell is represented by the notation:

1 $\mathrm{Pt}_{(\mathrm{s})} \mid \mathrm{H}_{2(\mathrm{~g})}, 1$ bar $\left \vert1 \mathrm{MKCl}_{(\mathrm{aq})}\right \vert \operatorname{AgCl}_{(\mathrm{S})} \mid \operatorname{Ag}_{(\mathrm{s})}$
2 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \mathrm{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert1 \mathrm{MAg}_{(\mathrm{aq})}^{+}\right \vert \mathrm{Ag}_{(\mathrm{s})}$
3 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{AgCl}_{(\mathrm{s})}\right \vert \operatorname{Ag}_{(\mathrm{s})}$
4 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{Ag}_{(\mathrm{s})}\right \vert \operatorname{AgCl}_{(\mathrm{S})}$
ELECTROCHEMISTRY

276270 A cell is constructed by coupling the two electrodes $\mathrm{Sn} / \mathbf{S n}^{2+}$ and $\mathbf{C u} / \mathbf{C u}^{2+}$. If $\mathbf{E}^{\mathbf{0}}\left(\mathbf{S n}^{2+}\right.$, $\mathrm{Sn}), \mathrm{E}^{\mathbf{0}}\left(\mathrm{Cu}^{2+}, \mathrm{Cu}\right)$, and $\mathrm{E}_{\text {cell }}^{0}$ are $-0.14 \mathrm{~V}, 0.34$ $\mathrm{V}$ and $0.48 \mathrm{~V}$ respectively, the correct representation of the cell is

1 $\mathrm{Sn}_{\text {(s) }}\left \vert\mathrm{Sn}^{2+}(0.1 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
2 $\operatorname{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{(\mathrm{s})}$
3 $\mathrm{Sn}_{(\mathrm{s})}\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Cu}_{\text {(s) }}$
4 $\mathrm{Cu}_{(\mathrm{s})}\left \vert\mathrm{Cu}^{2+}(1.0 \mathrm{M})\right \vert\left \vert\mathrm{Sn}^{2+}(1.0 \mathrm{M})\right \vert \mathrm{Sn}_{(\mathrm{s})}$
ELECTROCHEMISTRY

276275 Cell reaction is spontaneous, when

1 $\mathrm{E}_{\text {red }}^{\circ}$ is negative
2 $\mathrm{E}_{\text {red }}^{\circ}$ is positive
3 $\Delta \mathrm{G}^{\circ}$ is negative
4 $\Delta \mathrm{G}^{\circ}$ is positive
ELECTROCHEMISTRY

276279 The electrolyte in lead storage battery is dilute sulphuric acid. The concentration of sulphuric acid in a lead-storage battery must be between 4.8 $M$ and 5.3 $M$ for most efficient functioning A $5 \mathrm{~mL}$ sulphuric acid sample of a particular battery requires $50 \mathrm{~mL}$ of $1.0 \mathrm{M} \mathrm{NaOH}$ for complete neutralisation. Which of the following statements about the functioning of battery is the most appropriate?

1 The acid concentration in the battery is not in the most effective range
2 The acid concentration in the battery is in the most effective range
3 The acid concentration in the battery is hardly in the most effective range
4 Only a good mechanic can tell whether or not the acid concentration in the battery is in the most effective range
ELECTROCHEMISTRY

276282 The chemical reaction,
$2 \mathrm{AgCl}(\mathrm{s})+\mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{HCl}_{(\mathrm{aq})}+2 \mathrm{Ag}_{(\mathrm{s})}$
taking place in a galvanic cell is represented by the notation:

1 $\mathrm{Pt}_{(\mathrm{s})} \mid \mathrm{H}_{2(\mathrm{~g})}, 1$ bar $\left \vert1 \mathrm{MKCl}_{(\mathrm{aq})}\right \vert \operatorname{AgCl}_{(\mathrm{S})} \mid \operatorname{Ag}_{(\mathrm{s})}$
2 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \mathrm{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert1 \mathrm{MAg}_{(\mathrm{aq})}^{+}\right \vert \mathrm{Ag}_{(\mathrm{s})}$
3 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{AgCl}_{(\mathrm{s})}\right \vert \operatorname{Ag}_{(\mathrm{s})}$
4 $\mathrm{Pt}_{(\mathrm{s})}\left \vert\mathrm{H}_{2(\mathrm{~g})}, 1 \operatorname{bar}\right \vert 1 \mathrm{M} \mathrm{HCl}_{(\mathrm{aq})}\left \vert\operatorname{Ag}_{(\mathrm{s})}\right \vert \operatorname{AgCl}_{(\mathrm{S})}$