03. ELECTROCHEMISTRY
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ELECTROCHEMISTRY

20159 \({E^o}\) of a cell \(aA + bB \to cC + dD\) is

1 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}\)
2 \( - RT\,\log \frac{{{{[a]}^A}{{[b]}^B}}}{{{{[a]}^C}{{[d]}^D}}}\)
3 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[A]}^a}{{[B]}^b}}}\)
4 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[a]}^A}{{[B]}^b}}}\)
ELECTROCHEMISTRY

20402 At anode in the electrolysis of fused  \(NaCl\)

1 \(Na^+\)  is oxidised
2 \(Cl^-\)  is oxidised
3 \(Cl^-\)  is reduced
4 \(Na^+\)  is reduced
ELECTROCHEMISTRY

20572 Which of the following statement is incorrect?

1 \(N{{\overset{\Theta }{\mathop{O}}\,}_{3}}\) ion oxidises \(Cu\) but \(\overset{\oplus }{\mathop{H}}\,\) ion can not oxidise \(Cu\).
2 \(AgNO_3\) solution can not be stored in copper container.
3 Hydrogen gas can reduce Zinc ion \((Zn^{+2})\)
4 \({{F}^{\Theta }}\) ion is weakest reducing agent
ELECTROCHEMISTRY

20032 Which one of the following statement is true for a electrochemical cell

1 \({H_2}\)is cathode and \(Cu\) is anode
2 \({H_2}\) is anode and \(Cu\) is cathode
3 Reduction occurs at \({H_2}\)electrode
4 Oxidation occurs at \(Cu\) electrode
ELECTROCHEMISTRY

19800 Water can not be made conducting by adding small amount of any of the following except

1 Sodium chloride
2 Copper sulphate
3 Ammonium chloride
4 Sugar
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

20159 \({E^o}\) of a cell \(aA + bB \to cC + dD\) is

1 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}\)
2 \( - RT\,\log \frac{{{{[a]}^A}{{[b]}^B}}}{{{{[a]}^C}{{[d]}^D}}}\)
3 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[A]}^a}{{[B]}^b}}}\)
4 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[a]}^A}{{[B]}^b}}}\)
ELECTROCHEMISTRY

20402 At anode in the electrolysis of fused  \(NaCl\)

1 \(Na^+\)  is oxidised
2 \(Cl^-\)  is oxidised
3 \(Cl^-\)  is reduced
4 \(Na^+\)  is reduced
ELECTROCHEMISTRY

20572 Which of the following statement is incorrect?

1 \(N{{\overset{\Theta }{\mathop{O}}\,}_{3}}\) ion oxidises \(Cu\) but \(\overset{\oplus }{\mathop{H}}\,\) ion can not oxidise \(Cu\).
2 \(AgNO_3\) solution can not be stored in copper container.
3 Hydrogen gas can reduce Zinc ion \((Zn^{+2})\)
4 \({{F}^{\Theta }}\) ion is weakest reducing agent
ELECTROCHEMISTRY

20032 Which one of the following statement is true for a electrochemical cell

1 \({H_2}\)is cathode and \(Cu\) is anode
2 \({H_2}\) is anode and \(Cu\) is cathode
3 Reduction occurs at \({H_2}\)electrode
4 Oxidation occurs at \(Cu\) electrode
ELECTROCHEMISTRY

19800 Water can not be made conducting by adding small amount of any of the following except

1 Sodium chloride
2 Copper sulphate
3 Ammonium chloride
4 Sugar
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ELECTROCHEMISTRY

20159 \({E^o}\) of a cell \(aA + bB \to cC + dD\) is

1 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}\)
2 \( - RT\,\log \frac{{{{[a]}^A}{{[b]}^B}}}{{{{[a]}^C}{{[d]}^D}}}\)
3 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[A]}^a}{{[B]}^b}}}\)
4 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[a]}^A}{{[B]}^b}}}\)
ELECTROCHEMISTRY

20402 At anode in the electrolysis of fused  \(NaCl\)

1 \(Na^+\)  is oxidised
2 \(Cl^-\)  is oxidised
3 \(Cl^-\)  is reduced
4 \(Na^+\)  is reduced
ELECTROCHEMISTRY

20572 Which of the following statement is incorrect?

1 \(N{{\overset{\Theta }{\mathop{O}}\,}_{3}}\) ion oxidises \(Cu\) but \(\overset{\oplus }{\mathop{H}}\,\) ion can not oxidise \(Cu\).
2 \(AgNO_3\) solution can not be stored in copper container.
3 Hydrogen gas can reduce Zinc ion \((Zn^{+2})\)
4 \({{F}^{\Theta }}\) ion is weakest reducing agent
ELECTROCHEMISTRY

20032 Which one of the following statement is true for a electrochemical cell

1 \({H_2}\)is cathode and \(Cu\) is anode
2 \({H_2}\) is anode and \(Cu\) is cathode
3 Reduction occurs at \({H_2}\)electrode
4 Oxidation occurs at \(Cu\) electrode
ELECTROCHEMISTRY

19800 Water can not be made conducting by adding small amount of any of the following except

1 Sodium chloride
2 Copper sulphate
3 Ammonium chloride
4 Sugar
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ELECTROCHEMISTRY

20159 \({E^o}\) of a cell \(aA + bB \to cC + dD\) is

1 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}\)
2 \( - RT\,\log \frac{{{{[a]}^A}{{[b]}^B}}}{{{{[a]}^C}{{[d]}^D}}}\)
3 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[A]}^a}{{[B]}^b}}}\)
4 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[a]}^A}{{[B]}^b}}}\)
ELECTROCHEMISTRY

20402 At anode in the electrolysis of fused  \(NaCl\)

1 \(Na^+\)  is oxidised
2 \(Cl^-\)  is oxidised
3 \(Cl^-\)  is reduced
4 \(Na^+\)  is reduced
ELECTROCHEMISTRY

20572 Which of the following statement is incorrect?

1 \(N{{\overset{\Theta }{\mathop{O}}\,}_{3}}\) ion oxidises \(Cu\) but \(\overset{\oplus }{\mathop{H}}\,\) ion can not oxidise \(Cu\).
2 \(AgNO_3\) solution can not be stored in copper container.
3 Hydrogen gas can reduce Zinc ion \((Zn^{+2})\)
4 \({{F}^{\Theta }}\) ion is weakest reducing agent
ELECTROCHEMISTRY

20032 Which one of the following statement is true for a electrochemical cell

1 \({H_2}\)is cathode and \(Cu\) is anode
2 \({H_2}\) is anode and \(Cu\) is cathode
3 Reduction occurs at \({H_2}\)electrode
4 Oxidation occurs at \(Cu\) electrode
ELECTROCHEMISTRY

19800 Water can not be made conducting by adding small amount of any of the following except

1 Sodium chloride
2 Copper sulphate
3 Ammonium chloride
4 Sugar
NEET DIGITAL LIBRARY
ELECTROCHEMISTRY

20159 \({E^o}\) of a cell \(aA + bB \to cC + dD\) is

1 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[D]}^d}}}{{{{[A]}^a}{{[B]}^b}}}\)
2 \( - RT\,\log \frac{{{{[a]}^A}{{[b]}^B}}}{{{{[a]}^C}{{[d]}^D}}}\)
3 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[A]}^a}{{[B]}^b}}}\)
4 \( - \frac{{RT}}{{nF}}\log \frac{{{{[C]}^c}{{[d]}^D}}}{{{{[a]}^A}{{[B]}^b}}}\)
ELECTROCHEMISTRY

20402 At anode in the electrolysis of fused  \(NaCl\)

1 \(Na^+\)  is oxidised
2 \(Cl^-\)  is oxidised
3 \(Cl^-\)  is reduced
4 \(Na^+\)  is reduced
ELECTROCHEMISTRY

20572 Which of the following statement is incorrect?

1 \(N{{\overset{\Theta }{\mathop{O}}\,}_{3}}\) ion oxidises \(Cu\) but \(\overset{\oplus }{\mathop{H}}\,\) ion can not oxidise \(Cu\).
2 \(AgNO_3\) solution can not be stored in copper container.
3 Hydrogen gas can reduce Zinc ion \((Zn^{+2})\)
4 \({{F}^{\Theta }}\) ion is weakest reducing agent
ELECTROCHEMISTRY

20032 Which one of the following statement is true for a electrochemical cell

1 \({H_2}\)is cathode and \(Cu\) is anode
2 \({H_2}\) is anode and \(Cu\) is cathode
3 Reduction occurs at \({H_2}\)electrode
4 Oxidation occurs at \(Cu\) electrode
ELECTROCHEMISTRY

19800 Water can not be made conducting by adding small amount of any of the following except

1 Sodium chloride
2 Copper sulphate
3 Ammonium chloride
4 Sugar