Electrochemical Cells or Galvanic Cells
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CHXII03:ELECTROCHEMISTRY

330035 Depict the galvanic cell in which the cell reaction is \({\rm{Cu + 2A}}{{\rm{g}}^{{\rm{ + }}}} \to {\rm{2Ag + C}}{{\rm{u}}^{{\rm{2 + }}}}\)

1 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{2A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{2Ag}}\)
2 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right\vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right \vert {\rm{Ag}}\)
4 \(\left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert \left. {{\rm{Cu}}} \right\vert \left. {{\rm{Ag}}} \right \vert {\rm{A}}{{\rm{g}}^{\rm{ + }}}\)
CHXII03:ELECTROCHEMISTRY

330036 Which of the following statements is correct about the given Daniell cell?
supporting img

1 This cell converts the electrical energy liberated during the redox reaction to chemical energy.
2 This cell has an electrical potential greater than 1.1 V when concentration of \({\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}\) ions is unity \(\left( {{\rm{1}}\,\,{\rm{mol}}\,\,{\rm{d}}{{\rm{m}}^{{\rm{ - 3}}}}} \right)\)
3 In this cell, copper is acting as cathode and zinc is acting as anode.
4 \(C{u_{\left( s \right)}} + Zn_{\left( {aq} \right)}^{2 + } \to Cu_{\left( {aq} \right)}^{2 + } + Z{n_{\left( s \right)}}\)
CHXII03:ELECTROCHEMISTRY

330037 Agar - Agar is used in salt bridge since it is

1 Electrolyte
2 Non electrolyte
3 Inert electrolyte
4 A solid
CHXII03:ELECTROCHEMISTRY

330038 KCl is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \({{\rm{K}}^{\rm{ + }}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\) ions are nearly same or both have same ionic mobility
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CHXII03:ELECTROCHEMISTRY

330035 Depict the galvanic cell in which the cell reaction is \({\rm{Cu + 2A}}{{\rm{g}}^{{\rm{ + }}}} \to {\rm{2Ag + C}}{{\rm{u}}^{{\rm{2 + }}}}\)

1 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{2A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{2Ag}}\)
2 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right\vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right \vert {\rm{Ag}}\)
4 \(\left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert \left. {{\rm{Cu}}} \right\vert \left. {{\rm{Ag}}} \right \vert {\rm{A}}{{\rm{g}}^{\rm{ + }}}\)
CHXII03:ELECTROCHEMISTRY

330036 Which of the following statements is correct about the given Daniell cell?
supporting img

1 This cell converts the electrical energy liberated during the redox reaction to chemical energy.
2 This cell has an electrical potential greater than 1.1 V when concentration of \({\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}\) ions is unity \(\left( {{\rm{1}}\,\,{\rm{mol}}\,\,{\rm{d}}{{\rm{m}}^{{\rm{ - 3}}}}} \right)\)
3 In this cell, copper is acting as cathode and zinc is acting as anode.
4 \(C{u_{\left( s \right)}} + Zn_{\left( {aq} \right)}^{2 + } \to Cu_{\left( {aq} \right)}^{2 + } + Z{n_{\left( s \right)}}\)
CHXII03:ELECTROCHEMISTRY

330037 Agar - Agar is used in salt bridge since it is

1 Electrolyte
2 Non electrolyte
3 Inert electrolyte
4 A solid
CHXII03:ELECTROCHEMISTRY

330038 KCl is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \({{\rm{K}}^{\rm{ + }}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\) ions are nearly same or both have same ionic mobility
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CHXII03:ELECTROCHEMISTRY

330035 Depict the galvanic cell in which the cell reaction is \({\rm{Cu + 2A}}{{\rm{g}}^{{\rm{ + }}}} \to {\rm{2Ag + C}}{{\rm{u}}^{{\rm{2 + }}}}\)

1 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{2A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{2Ag}}\)
2 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right\vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right \vert {\rm{Ag}}\)
4 \(\left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert \left. {{\rm{Cu}}} \right\vert \left. {{\rm{Ag}}} \right \vert {\rm{A}}{{\rm{g}}^{\rm{ + }}}\)
CHXII03:ELECTROCHEMISTRY

330036 Which of the following statements is correct about the given Daniell cell?
supporting img

1 This cell converts the electrical energy liberated during the redox reaction to chemical energy.
2 This cell has an electrical potential greater than 1.1 V when concentration of \({\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}\) ions is unity \(\left( {{\rm{1}}\,\,{\rm{mol}}\,\,{\rm{d}}{{\rm{m}}^{{\rm{ - 3}}}}} \right)\)
3 In this cell, copper is acting as cathode and zinc is acting as anode.
4 \(C{u_{\left( s \right)}} + Zn_{\left( {aq} \right)}^{2 + } \to Cu_{\left( {aq} \right)}^{2 + } + Z{n_{\left( s \right)}}\)
CHXII03:ELECTROCHEMISTRY

330037 Agar - Agar is used in salt bridge since it is

1 Electrolyte
2 Non electrolyte
3 Inert electrolyte
4 A solid
CHXII03:ELECTROCHEMISTRY

330038 KCl is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \({{\rm{K}}^{\rm{ + }}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\) ions are nearly same or both have same ionic mobility
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CHXII03:ELECTROCHEMISTRY

330035 Depict the galvanic cell in which the cell reaction is \({\rm{Cu + 2A}}{{\rm{g}}^{{\rm{ + }}}} \to {\rm{2Ag + C}}{{\rm{u}}^{{\rm{2 + }}}}\)

1 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{2A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{2Ag}}\)
2 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right\vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Cu}}} \right \vert \left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right\vert \left. {{\rm{A}}{{\rm{g}}^{\rm{ + }}}} \right \vert {\rm{Ag}}\)
4 \(\left. {{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}} \right \vert \left. {{\rm{Cu}}} \right\vert \left. {{\rm{Ag}}} \right \vert {\rm{A}}{{\rm{g}}^{\rm{ + }}}\)
CHXII03:ELECTROCHEMISTRY

330036 Which of the following statements is correct about the given Daniell cell?
supporting img

1 This cell converts the electrical energy liberated during the redox reaction to chemical energy.
2 This cell has an electrical potential greater than 1.1 V when concentration of \({\rm{Z}}{{\rm{n}}^{{\rm{2 + }}}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{u}}^{{\rm{2 + }}}}\) ions is unity \(\left( {{\rm{1}}\,\,{\rm{mol}}\,\,{\rm{d}}{{\rm{m}}^{{\rm{ - 3}}}}} \right)\)
3 In this cell, copper is acting as cathode and zinc is acting as anode.
4 \(C{u_{\left( s \right)}} + Zn_{\left( {aq} \right)}^{2 + } \to Cu_{\left( {aq} \right)}^{2 + } + Z{n_{\left( s \right)}}\)
CHXII03:ELECTROCHEMISTRY

330037 Agar - Agar is used in salt bridge since it is

1 Electrolyte
2 Non electrolyte
3 Inert electrolyte
4 A solid
CHXII03:ELECTROCHEMISTRY

330038 KCl is used in a salt bridge because :

1 It forms a good jelly with agar-agar
2 It is a strong electrolyte
3 It is a good conductor of electric current
4 The transport number of \({{\rm{K}}^{\rm{ + }}}\,\,{\rm{and}}\,\,{\rm{C}}{{\rm{l}}^{\rm{ - }}}\) ions are nearly same or both have same ionic mobility
NEET DIGITAL LIBRARY