03. ELECTROCHEMISTRY
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ELECTROCHEMISTRY

20050 The reference electrode is made by using

1 \(ZnC{l_2}\)
2 \(CuS{O_4}\)
3 \(HgC{l_2}\)
4 \(H{g_2}C{l_2}\)
ELECTROCHEMISTRY

20051 In a hydrogen -oxygen fuel cell, combustion of hydrogen occurs to

1 Produce high purity water
2 Create potential difference between the two electrodes
3 Generate heat
4 Remove adsorbed oxygen from electrode surfaces
ELECTROCHEMISTRY

20052 \({\lambda _{ClC{H_2}COONa}} = 224\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{NaCl}} = 38.2\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{HCl}} = 203\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),What is the value of \({\lambda _{ClC{H_2}COOH}}\) .............. \({\rm{Oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}{\rm{gm}}\,{\rm{e}}{{\rm{q}}^{ - 1}}\)

1 \(288.5\)
2 \(289.5\)
3 \(388.5\)
4 \(59.5\)
ELECTROCHEMISTRY

20053 Which of the following statement is true for the electrochemical Daniel cell

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move toward copper electrode which is cathode
4 Cations move toward zinc electrode
ELECTROCHEMISTRY

20054 Which of the following statement is true for an 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
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ELECTROCHEMISTRY

20050 The reference electrode is made by using

1 \(ZnC{l_2}\)
2 \(CuS{O_4}\)
3 \(HgC{l_2}\)
4 \(H{g_2}C{l_2}\)
ELECTROCHEMISTRY

20051 In a hydrogen -oxygen fuel cell, combustion of hydrogen occurs to

1 Produce high purity water
2 Create potential difference between the two electrodes
3 Generate heat
4 Remove adsorbed oxygen from electrode surfaces
ELECTROCHEMISTRY

20052 \({\lambda _{ClC{H_2}COONa}} = 224\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{NaCl}} = 38.2\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{HCl}} = 203\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),What is the value of \({\lambda _{ClC{H_2}COOH}}\) .............. \({\rm{Oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}{\rm{gm}}\,{\rm{e}}{{\rm{q}}^{ - 1}}\)

1 \(288.5\)
2 \(289.5\)
3 \(388.5\)
4 \(59.5\)
ELECTROCHEMISTRY

20053 Which of the following statement is true for the electrochemical Daniel cell

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move toward copper electrode which is cathode
4 Cations move toward zinc electrode
ELECTROCHEMISTRY

20054 Which of the following statement is true for an 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
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ELECTROCHEMISTRY

20050 The reference electrode is made by using

1 \(ZnC{l_2}\)
2 \(CuS{O_4}\)
3 \(HgC{l_2}\)
4 \(H{g_2}C{l_2}\)
ELECTROCHEMISTRY

20051 In a hydrogen -oxygen fuel cell, combustion of hydrogen occurs to

1 Produce high purity water
2 Create potential difference between the two electrodes
3 Generate heat
4 Remove adsorbed oxygen from electrode surfaces
ELECTROCHEMISTRY

20052 \({\lambda _{ClC{H_2}COONa}} = 224\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{NaCl}} = 38.2\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{HCl}} = 203\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),What is the value of \({\lambda _{ClC{H_2}COOH}}\) .............. \({\rm{Oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}{\rm{gm}}\,{\rm{e}}{{\rm{q}}^{ - 1}}\)

1 \(288.5\)
2 \(289.5\)
3 \(388.5\)
4 \(59.5\)
ELECTROCHEMISTRY

20053 Which of the following statement is true for the electrochemical Daniel cell

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move toward copper electrode which is cathode
4 Cations move toward zinc electrode
ELECTROCHEMISTRY

20054 Which of the following statement is true for an 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
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ELECTROCHEMISTRY

20050 The reference electrode is made by using

1 \(ZnC{l_2}\)
2 \(CuS{O_4}\)
3 \(HgC{l_2}\)
4 \(H{g_2}C{l_2}\)
ELECTROCHEMISTRY

20051 In a hydrogen -oxygen fuel cell, combustion of hydrogen occurs to

1 Produce high purity water
2 Create potential difference between the two electrodes
3 Generate heat
4 Remove adsorbed oxygen from electrode surfaces
ELECTROCHEMISTRY

20052 \({\lambda _{ClC{H_2}COONa}} = 224\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{NaCl}} = 38.2\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{HCl}} = 203\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),What is the value of \({\lambda _{ClC{H_2}COOH}}\) .............. \({\rm{Oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}{\rm{gm}}\,{\rm{e}}{{\rm{q}}^{ - 1}}\)

1 \(288.5\)
2 \(289.5\)
3 \(388.5\)
4 \(59.5\)
ELECTROCHEMISTRY

20053 Which of the following statement is true for the electrochemical Daniel cell

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move toward copper electrode which is cathode
4 Cations move toward zinc electrode
ELECTROCHEMISTRY

20054 Which of the following statement is true for an 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
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ELECTROCHEMISTRY

20050 The reference electrode is made by using

1 \(ZnC{l_2}\)
2 \(CuS{O_4}\)
3 \(HgC{l_2}\)
4 \(H{g_2}C{l_2}\)
ELECTROCHEMISTRY

20051 In a hydrogen -oxygen fuel cell, combustion of hydrogen occurs to

1 Produce high purity water
2 Create potential difference between the two electrodes
3 Generate heat
4 Remove adsorbed oxygen from electrode surfaces
ELECTROCHEMISTRY

20052 \({\lambda _{ClC{H_2}COONa}} = 224\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{NaCl}} = 38.2\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),\({\lambda _{HCl}} = 203\;oh{m^{ - 1}}\,c{m^2}\,gme{q^{ - 1}}\),What is the value of \({\lambda _{ClC{H_2}COOH}}\) .............. \({\rm{Oh}}{{\rm{m}}^{ - 1}}{\mkern 1mu} {\rm{c}}{{\rm{m}}^2}{\rm{gm}}\,{\rm{e}}{{\rm{q}}^{ - 1}}\)

1 \(288.5\)
2 \(289.5\)
3 \(388.5\)
4 \(59.5\)
ELECTROCHEMISTRY

20053 Which of the following statement is true for the electrochemical Daniel cell

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move toward copper electrode which is cathode
4 Cations move toward zinc electrode
ELECTROCHEMISTRY

20054 Which of the following statement is true for an 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