Electrochemical Cells or Galvanic Cells
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NEET DIGITAL LIBRARY
CHXII03:ELECTROCHEMISTRY

330048 In which of the following cells net cell reaction is:
\({\rm{A}}{{\rm{g}}^{\rm{ + }}}\left( {{\rm{aq}}} \right){\rm{ + Cl}}_{\left( {{\rm{aq}}} \right)}^{\rm{ - }} \to {\rm{AgCl}}\left( {\rm{s}} \right)\)

1 \(\left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert \left. {{\rm{AgCl}}} \right \vert {\rm{Ag}}\)
2 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert {\rm{Ag}}\)
4 All of the above
CHXII03:ELECTROCHEMISTRY

330049 Which of the following statements is true for the electrochemical Daniell cell?

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move towards copper electrode
4 Cations move towards zinc electrode
CHXII03:ELECTROCHEMISTRY

330050 Match the Column-I (functioning of Daniel cell) with Column-II (value of \({{\rm{E}}_{{\rm{ext}}}}\)) and choose the correct option.
Column I
Column II
A
Flow of electrons from Cu to Zn and current flows from Zn to Cu
P
\({\rm{E = 1}}{\rm{.1V}}\)
B
No flow of electrons and current
Q
\({\rm{E < 1}}{\rm{.1V}}\)
C
Zn dissolves at anodeand copper deposits at cathode
R
\({\rm{E > 1}}{\rm{.1V}}\)

1 A - Q, B - P, C - R
2 A - R, B - P, C - Q
3 A - P, B - R, C - Q
4 A - R, B - Q, C - P
CHXII03:ELECTROCHEMISTRY

330051 Saturated solution of \(\mathrm{KNO}_{3}\) is used to make salt bridge because

1 velocity of \(\mathrm{K}^{+}\)is greater than that of \(\mathrm{NO}_{3}^{-}\)
2 velocity of \(\mathrm{NO}_{3}^{-}\)is greater than that of \(\mathrm{K}^{+}\)
3 velocity of both \(\mathrm{K}^{+}\)and \(\mathrm{NO}_{3}^{-}\)are nearly same
4 \(\mathrm{KNO}_{3}\) is soluble in water
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CHXII03:ELECTROCHEMISTRY

330048 In which of the following cells net cell reaction is:
\({\rm{A}}{{\rm{g}}^{\rm{ + }}}\left( {{\rm{aq}}} \right){\rm{ + Cl}}_{\left( {{\rm{aq}}} \right)}^{\rm{ - }} \to {\rm{AgCl}}\left( {\rm{s}} \right)\)

1 \(\left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert \left. {{\rm{AgCl}}} \right \vert {\rm{Ag}}\)
2 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert {\rm{Ag}}\)
4 All of the above
CHXII03:ELECTROCHEMISTRY

330049 Which of the following statements is true for the electrochemical Daniell cell?

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move towards copper electrode
4 Cations move towards zinc electrode
CHXII03:ELECTROCHEMISTRY

330050 Match the Column-I (functioning of Daniel cell) with Column-II (value of \({{\rm{E}}_{{\rm{ext}}}}\)) and choose the correct option.
Column I
Column II
A
Flow of electrons from Cu to Zn and current flows from Zn to Cu
P
\({\rm{E = 1}}{\rm{.1V}}\)
B
No flow of electrons and current
Q
\({\rm{E < 1}}{\rm{.1V}}\)
C
Zn dissolves at anodeand copper deposits at cathode
R
\({\rm{E > 1}}{\rm{.1V}}\)

1 A - Q, B - P, C - R
2 A - R, B - P, C - Q
3 A - P, B - R, C - Q
4 A - R, B - Q, C - P
CHXII03:ELECTROCHEMISTRY

330051 Saturated solution of \(\mathrm{KNO}_{3}\) is used to make salt bridge because

1 velocity of \(\mathrm{K}^{+}\)is greater than that of \(\mathrm{NO}_{3}^{-}\)
2 velocity of \(\mathrm{NO}_{3}^{-}\)is greater than that of \(\mathrm{K}^{+}\)
3 velocity of both \(\mathrm{K}^{+}\)and \(\mathrm{NO}_{3}^{-}\)are nearly same
4 \(\mathrm{KNO}_{3}\) is soluble in water
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CHXII03:ELECTROCHEMISTRY

330048 In which of the following cells net cell reaction is:
\({\rm{A}}{{\rm{g}}^{\rm{ + }}}\left( {{\rm{aq}}} \right){\rm{ + Cl}}_{\left( {{\rm{aq}}} \right)}^{\rm{ - }} \to {\rm{AgCl}}\left( {\rm{s}} \right)\)

1 \(\left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert \left. {{\rm{AgCl}}} \right \vert {\rm{Ag}}\)
2 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert {\rm{Ag}}\)
4 All of the above
CHXII03:ELECTROCHEMISTRY

330049 Which of the following statements is true for the electrochemical Daniell cell?

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move towards copper electrode
4 Cations move towards zinc electrode
CHXII03:ELECTROCHEMISTRY

330050 Match the Column-I (functioning of Daniel cell) with Column-II (value of \({{\rm{E}}_{{\rm{ext}}}}\)) and choose the correct option.
Column I
Column II
A
Flow of electrons from Cu to Zn and current flows from Zn to Cu
P
\({\rm{E = 1}}{\rm{.1V}}\)
B
No flow of electrons and current
Q
\({\rm{E < 1}}{\rm{.1V}}\)
C
Zn dissolves at anodeand copper deposits at cathode
R
\({\rm{E > 1}}{\rm{.1V}}\)

1 A - Q, B - P, C - R
2 A - R, B - P, C - Q
3 A - P, B - R, C - Q
4 A - R, B - Q, C - P
CHXII03:ELECTROCHEMISTRY

330051 Saturated solution of \(\mathrm{KNO}_{3}\) is used to make salt bridge because

1 velocity of \(\mathrm{K}^{+}\)is greater than that of \(\mathrm{NO}_{3}^{-}\)
2 velocity of \(\mathrm{NO}_{3}^{-}\)is greater than that of \(\mathrm{K}^{+}\)
3 velocity of both \(\mathrm{K}^{+}\)and \(\mathrm{NO}_{3}^{-}\)are nearly same
4 \(\mathrm{KNO}_{3}\) is soluble in water
NEET DIGITAL LIBRARY
CHXII03:ELECTROCHEMISTRY

330048 In which of the following cells net cell reaction is:
\({\rm{A}}{{\rm{g}}^{\rm{ + }}}\left( {{\rm{aq}}} \right){\rm{ + Cl}}_{\left( {{\rm{aq}}} \right)}^{\rm{ - }} \to {\rm{AgCl}}\left( {\rm{s}} \right)\)

1 \(\left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert \left. {{\rm{AgCl}}} \right \vert {\rm{Ag}}\)
2 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right\vert \left. {{\rm{N}}{{\rm{H}}_{\rm{4}}}{\rm{N}}{{\rm{O}}_{\rm{3}}}} \right\vert \left. {{\rm{AgN}}{{\rm{O}}_{\rm{3}}}} \right \vert {\rm{Ag}}\)
3 \(\left. {{\rm{Ag}}} \right \vert \left. {{\rm{AgCl}}\left( {\rm{s}} \right)} \right \vert \left. {{\rm{KCl}}\left( {{\rm{aq}}} \right)} \right \vert {\rm{Ag}}\)
4 All of the above
CHXII03:ELECTROCHEMISTRY

330049 Which of the following statements is true for the electrochemical Daniell cell?

1 Electrons flow from copper electrode to zinc electrode
2 Current flows from zinc electrode to copper electrode
3 Cations move towards copper electrode
4 Cations move towards zinc electrode
CHXII03:ELECTROCHEMISTRY

330050 Match the Column-I (functioning of Daniel cell) with Column-II (value of \({{\rm{E}}_{{\rm{ext}}}}\)) and choose the correct option.
Column I
Column II
A
Flow of electrons from Cu to Zn and current flows from Zn to Cu
P
\({\rm{E = 1}}{\rm{.1V}}\)
B
No flow of electrons and current
Q
\({\rm{E < 1}}{\rm{.1V}}\)
C
Zn dissolves at anodeand copper deposits at cathode
R
\({\rm{E > 1}}{\rm{.1V}}\)

1 A - Q, B - P, C - R
2 A - R, B - P, C - Q
3 A - P, B - R, C - Q
4 A - R, B - Q, C - P
CHXII03:ELECTROCHEMISTRY

330051 Saturated solution of \(\mathrm{KNO}_{3}\) is used to make salt bridge because

1 velocity of \(\mathrm{K}^{+}\)is greater than that of \(\mathrm{NO}_{3}^{-}\)
2 velocity of \(\mathrm{NO}_{3}^{-}\)is greater than that of \(\mathrm{K}^{+}\)
3 velocity of both \(\mathrm{K}^{+}\)and \(\mathrm{NO}_{3}^{-}\)are nearly same
4 \(\mathrm{KNO}_{3}\) is soluble in water
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