00. Electrode Potential
ELECTROCHEMISTRY

275790 $250 \mathrm{~mL}$ of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_{3}$ and $0.1 \mathrm{M} A u C l$. The solution was electrolysed at $2 \mathrm{~V}$ by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be
$\left(\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\mathbf{0}}=\mathbf{0 . 8 0} \mathrm{V}, \mathrm{E}_{\mathrm{Au}^{+} / \mathrm{Au}}^{0}=1.69\right)$

1 only silver
2 silver and gold in equal mass proportion
3 only gold
4 silver and gold in proportion to their atomic weights
ELECTROCHEMISTRY

275791 Given $\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.76 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{I}_{2} / \mathrm{I}^{-}}^{0}=+0.55 \mathrm{~V}$.
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is
$\left[\frac{2.303 \mathrm{RT}}{\mathrm{F}}=\mathbf{0 . 0 6}\right]$

1 $1 \times 10^{7}$
2 $1 \times 10^{9}$
3 $3 \times 10^{8}$
4 $5 \times 10^{12}$
ELECTROCHEMISTRY

275793 Which of the following statements is correct for the cell $\mathbf{Z n}\left \vert\mathbf{Z n}^{+2} \ \vert \mathbf{C u}^{+2}\right \vert \mathbf{C u}$ ?

1 $\mathrm{Zn}$ is reducing agent.
2 $\mathrm{Cu}$ is anode.
3 $\mathrm{Cu}$ is oxidising agent.
4 The cell reaction is $\mathrm{Zn}+\mathrm{Cu}^{+2} \rightarrow \mathrm{Zn}^{+2}+\mathrm{Cu}$
ELECTROCHEMISTRY

275794 Which one of the following has a potential more than zero?

1 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(1 \mathrm{M})$
2 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(2 \mathrm{M})$
3 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.1 \mathrm{M})$
4 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.5 \mathrm{M})$
ELECTROCHEMISTRY

275796 For a cell involving one electron, $E_{\text {cell }}^{0}=0.59 \mathrm{~V}$ at $298 \mathrm{~K}$, the equilibrium constant for cell reaction is [Given that $\frac{2.303 R T}{F}=\mathbf{F} .059 \mathrm{~V}$ at $\mathbf{T}=\mathbf{2 9 8} \mathrm{K}]$

1 $1.0 \times 10^{30}$
2 $1.0 \times 10^{2}$
3 $1.0 \times 10^{5}$
4 $1.0 \times 10^{10}$
ELECTROCHEMISTRY

275790 $250 \mathrm{~mL}$ of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_{3}$ and $0.1 \mathrm{M} A u C l$. The solution was electrolysed at $2 \mathrm{~V}$ by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be
$\left(\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\mathbf{0}}=\mathbf{0 . 8 0} \mathrm{V}, \mathrm{E}_{\mathrm{Au}^{+} / \mathrm{Au}}^{0}=1.69\right)$

1 only silver
2 silver and gold in equal mass proportion
3 only gold
4 silver and gold in proportion to their atomic weights
ELECTROCHEMISTRY

275791 Given $\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.76 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{I}_{2} / \mathrm{I}^{-}}^{0}=+0.55 \mathrm{~V}$.
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is
$\left[\frac{2.303 \mathrm{RT}}{\mathrm{F}}=\mathbf{0 . 0 6}\right]$

1 $1 \times 10^{7}$
2 $1 \times 10^{9}$
3 $3 \times 10^{8}$
4 $5 \times 10^{12}$
ELECTROCHEMISTRY

275793 Which of the following statements is correct for the cell $\mathbf{Z n}\left \vert\mathbf{Z n}^{+2} \ \vert \mathbf{C u}^{+2}\right \vert \mathbf{C u}$ ?

1 $\mathrm{Zn}$ is reducing agent.
2 $\mathrm{Cu}$ is anode.
3 $\mathrm{Cu}$ is oxidising agent.
4 The cell reaction is $\mathrm{Zn}+\mathrm{Cu}^{+2} \rightarrow \mathrm{Zn}^{+2}+\mathrm{Cu}$
ELECTROCHEMISTRY

275794 Which one of the following has a potential more than zero?

1 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(1 \mathrm{M})$
2 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(2 \mathrm{M})$
3 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.1 \mathrm{M})$
4 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.5 \mathrm{M})$
ELECTROCHEMISTRY

275796 For a cell involving one electron, $E_{\text {cell }}^{0}=0.59 \mathrm{~V}$ at $298 \mathrm{~K}$, the equilibrium constant for cell reaction is [Given that $\frac{2.303 R T}{F}=\mathbf{F} .059 \mathrm{~V}$ at $\mathbf{T}=\mathbf{2 9 8} \mathrm{K}]$

1 $1.0 \times 10^{30}$
2 $1.0 \times 10^{2}$
3 $1.0 \times 10^{5}$
4 $1.0 \times 10^{10}$
ELECTROCHEMISTRY

275790 $250 \mathrm{~mL}$ of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_{3}$ and $0.1 \mathrm{M} A u C l$. The solution was electrolysed at $2 \mathrm{~V}$ by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be
$\left(\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\mathbf{0}}=\mathbf{0 . 8 0} \mathrm{V}, \mathrm{E}_{\mathrm{Au}^{+} / \mathrm{Au}}^{0}=1.69\right)$

1 only silver
2 silver and gold in equal mass proportion
3 only gold
4 silver and gold in proportion to their atomic weights
ELECTROCHEMISTRY

275791 Given $\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.76 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{I}_{2} / \mathrm{I}^{-}}^{0}=+0.55 \mathrm{~V}$.
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is
$\left[\frac{2.303 \mathrm{RT}}{\mathrm{F}}=\mathbf{0 . 0 6}\right]$

1 $1 \times 10^{7}$
2 $1 \times 10^{9}$
3 $3 \times 10^{8}$
4 $5 \times 10^{12}$
ELECTROCHEMISTRY

275793 Which of the following statements is correct for the cell $\mathbf{Z n}\left \vert\mathbf{Z n}^{+2} \ \vert \mathbf{C u}^{+2}\right \vert \mathbf{C u}$ ?

1 $\mathrm{Zn}$ is reducing agent.
2 $\mathrm{Cu}$ is anode.
3 $\mathrm{Cu}$ is oxidising agent.
4 The cell reaction is $\mathrm{Zn}+\mathrm{Cu}^{+2} \rightarrow \mathrm{Zn}^{+2}+\mathrm{Cu}$
ELECTROCHEMISTRY

275794 Which one of the following has a potential more than zero?

1 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(1 \mathrm{M})$
2 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(2 \mathrm{M})$
3 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.1 \mathrm{M})$
4 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.5 \mathrm{M})$
ELECTROCHEMISTRY

275796 For a cell involving one electron, $E_{\text {cell }}^{0}=0.59 \mathrm{~V}$ at $298 \mathrm{~K}$, the equilibrium constant for cell reaction is [Given that $\frac{2.303 R T}{F}=\mathbf{F} .059 \mathrm{~V}$ at $\mathbf{T}=\mathbf{2 9 8} \mathrm{K}]$

1 $1.0 \times 10^{30}$
2 $1.0 \times 10^{2}$
3 $1.0 \times 10^{5}$
4 $1.0 \times 10^{10}$
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
ELECTROCHEMISTRY

275790 $250 \mathrm{~mL}$ of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_{3}$ and $0.1 \mathrm{M} A u C l$. The solution was electrolysed at $2 \mathrm{~V}$ by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be
$\left(\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\mathbf{0}}=\mathbf{0 . 8 0} \mathrm{V}, \mathrm{E}_{\mathrm{Au}^{+} / \mathrm{Au}}^{0}=1.69\right)$

1 only silver
2 silver and gold in equal mass proportion
3 only gold
4 silver and gold in proportion to their atomic weights
ELECTROCHEMISTRY

275791 Given $\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.76 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{I}_{2} / \mathrm{I}^{-}}^{0}=+0.55 \mathrm{~V}$.
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is
$\left[\frac{2.303 \mathrm{RT}}{\mathrm{F}}=\mathbf{0 . 0 6}\right]$

1 $1 \times 10^{7}$
2 $1 \times 10^{9}$
3 $3 \times 10^{8}$
4 $5 \times 10^{12}$
ELECTROCHEMISTRY

275793 Which of the following statements is correct for the cell $\mathbf{Z n}\left \vert\mathbf{Z n}^{+2} \ \vert \mathbf{C u}^{+2}\right \vert \mathbf{C u}$ ?

1 $\mathrm{Zn}$ is reducing agent.
2 $\mathrm{Cu}$ is anode.
3 $\mathrm{Cu}$ is oxidising agent.
4 The cell reaction is $\mathrm{Zn}+\mathrm{Cu}^{+2} \rightarrow \mathrm{Zn}^{+2}+\mathrm{Cu}$
ELECTROCHEMISTRY

275794 Which one of the following has a potential more than zero?

1 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(1 \mathrm{M})$
2 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(2 \mathrm{M})$
3 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.1 \mathrm{M})$
4 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.5 \mathrm{M})$
ELECTROCHEMISTRY

275796 For a cell involving one electron, $E_{\text {cell }}^{0}=0.59 \mathrm{~V}$ at $298 \mathrm{~K}$, the equilibrium constant for cell reaction is [Given that $\frac{2.303 R T}{F}=\mathbf{F} .059 \mathrm{~V}$ at $\mathbf{T}=\mathbf{2 9 8} \mathrm{K}]$

1 $1.0 \times 10^{30}$
2 $1.0 \times 10^{2}$
3 $1.0 \times 10^{5}$
4 $1.0 \times 10^{10}$
ELECTROCHEMISTRY

275790 $250 \mathrm{~mL}$ of a waste solution obtained from the workshop of a goldsmith contains $0.1 \mathrm{M} \mathrm{AgNO}_{3}$ and $0.1 \mathrm{M} A u C l$. The solution was electrolysed at $2 \mathrm{~V}$ by passing a current of 1 A for 15 minutes. The metal/metals electrodeposited will be
$\left(\mathrm{E}_{\mathrm{Ag}^{+} / \mathrm{Ag}}^{\mathbf{0}}=\mathbf{0 . 8 0} \mathrm{V}, \mathrm{E}_{\mathrm{Au}^{+} / \mathrm{Au}}^{0}=1.69\right)$

1 only silver
2 silver and gold in equal mass proportion
3 only gold
4 silver and gold in proportion to their atomic weights
ELECTROCHEMISTRY

275791 Given $\mathrm{E}_{\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}}^{0}=+0.76 \mathrm{~V}$ and $\mathrm{E}_{\mathrm{I}_{2} / \mathrm{I}^{-}}^{0}=+0.55 \mathrm{~V}$.
The equilibrium constant for the reaction taking place in galvanic cell consisting of above two electrodes is
$\left[\frac{2.303 \mathrm{RT}}{\mathrm{F}}=\mathbf{0 . 0 6}\right]$

1 $1 \times 10^{7}$
2 $1 \times 10^{9}$
3 $3 \times 10^{8}$
4 $5 \times 10^{12}$
ELECTROCHEMISTRY

275793 Which of the following statements is correct for the cell $\mathbf{Z n}\left \vert\mathbf{Z n}^{+2} \ \vert \mathbf{C u}^{+2}\right \vert \mathbf{C u}$ ?

1 $\mathrm{Zn}$ is reducing agent.
2 $\mathrm{Cu}$ is anode.
3 $\mathrm{Cu}$ is oxidising agent.
4 The cell reaction is $\mathrm{Zn}+\mathrm{Cu}^{+2} \rightarrow \mathrm{Zn}^{+2}+\mathrm{Cu}$
ELECTROCHEMISTRY

275794 Which one of the following has a potential more than zero?

1 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(1 \mathrm{M})$
2 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(2 \mathrm{M})$
3 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.1 \mathrm{M})$
4 $\mathrm{Pt}, \frac{1}{2} \mathrm{H}_{2}(1 \mathrm{~atm}) \mid \mathrm{HCl}(0.5 \mathrm{M})$
ELECTROCHEMISTRY

275796 For a cell involving one electron, $E_{\text {cell }}^{0}=0.59 \mathrm{~V}$ at $298 \mathrm{~K}$, the equilibrium constant for cell reaction is [Given that $\frac{2.303 R T}{F}=\mathbf{F} .059 \mathrm{~V}$ at $\mathbf{T}=\mathbf{2 9 8} \mathrm{K}]$

1 $1.0 \times 10^{30}$
2 $1.0 \times 10^{2}$
3 $1.0 \times 10^{5}$
4 $1.0 \times 10^{10}$