Electrochemical Cells or Galvanic Cells
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CHXII03:ELECTROCHEMISTRY

330054 Which of the following is not a function of salt bridge?

1 To maintain electrical neutrality of the solution
2 To increase liquid-liquid junction potential
3 To prevent voltage drop and to minimise liquid - liqiud junction potential
4 To complete the circuit so that current can flow
CHXII03:ELECTROCHEMISTRY

330055 The reaction;
\({\mathrm{\dfrac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}}}\)
occurs in which of the following galvanic cell

1 \({\mathrm{\mathrm{Ag}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{\text {3(aq) }}\right \vert \mathrm{Ag}}}\)
2 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{(\text {s) }}\right \vert \mathrm{Ag}}}\)
3 \({\mathrm{\mathrm{Pt}\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{Ag}}}\)
4 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\text { g) }}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{3(\text { aq })}\right \vert \mathrm{Ag}}}\)
JEE Main - 2024
CHXII03:ELECTROCHEMISTRY

330056 Which of the following is incorrect in a galvanic cell?

1 Oxidation occurs at anode
2 Reduction occurs at cathode
3 The electrode at which electrons are gained is called cathode
4 The electrode at which electrons are lost is called cathode
KCET - 2016
CHXII03:ELECTROCHEMISTRY

330057 The formal potential of \(\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}\) in a sulphuric acid and phosphoric acid mixture\(\left( {{\rm{E}}^\circ = + 0.16\;{\rm{V}}} \right)\) is much lower than the standard potential\(\left( {{\rm{E}}^\circ = + 0.77{\rm{V}}} \right)\). This is due to

1 formation of the species \(\left[\mathrm{FeHPO}_{4}\right]^{+}\)
2 lowering of potential upon complexation
3 formation of the species \(\left[\mathrm{FeSO}_{4}\right]^{+}\)
4 high acidic of the medium
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CHXII03:ELECTROCHEMISTRY

330054 Which of the following is not a function of salt bridge?

1 To maintain electrical neutrality of the solution
2 To increase liquid-liquid junction potential
3 To prevent voltage drop and to minimise liquid - liqiud junction potential
4 To complete the circuit so that current can flow
CHXII03:ELECTROCHEMISTRY

330055 The reaction;
\({\mathrm{\dfrac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}}}\)
occurs in which of the following galvanic cell

1 \({\mathrm{\mathrm{Ag}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{\text {3(aq) }}\right \vert \mathrm{Ag}}}\)
2 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{(\text {s) }}\right \vert \mathrm{Ag}}}\)
3 \({\mathrm{\mathrm{Pt}\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{Ag}}}\)
4 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\text { g) }}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{3(\text { aq })}\right \vert \mathrm{Ag}}}\)
JEE Main - 2024
CHXII03:ELECTROCHEMISTRY

330056 Which of the following is incorrect in a galvanic cell?

1 Oxidation occurs at anode
2 Reduction occurs at cathode
3 The electrode at which electrons are gained is called cathode
4 The electrode at which electrons are lost is called cathode
KCET - 2016
CHXII03:ELECTROCHEMISTRY

330057 The formal potential of \(\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}\) in a sulphuric acid and phosphoric acid mixture\(\left( {{\rm{E}}^\circ = + 0.16\;{\rm{V}}} \right)\) is much lower than the standard potential\(\left( {{\rm{E}}^\circ = + 0.77{\rm{V}}} \right)\). This is due to

1 formation of the species \(\left[\mathrm{FeHPO}_{4}\right]^{+}\)
2 lowering of potential upon complexation
3 formation of the species \(\left[\mathrm{FeSO}_{4}\right]^{+}\)
4 high acidic of the medium
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CHXII03:ELECTROCHEMISTRY

330054 Which of the following is not a function of salt bridge?

1 To maintain electrical neutrality of the solution
2 To increase liquid-liquid junction potential
3 To prevent voltage drop and to minimise liquid - liqiud junction potential
4 To complete the circuit so that current can flow
CHXII03:ELECTROCHEMISTRY

330055 The reaction;
\({\mathrm{\dfrac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}}}\)
occurs in which of the following galvanic cell

1 \({\mathrm{\mathrm{Ag}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{\text {3(aq) }}\right \vert \mathrm{Ag}}}\)
2 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{(\text {s) }}\right \vert \mathrm{Ag}}}\)
3 \({\mathrm{\mathrm{Pt}\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{Ag}}}\)
4 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\text { g) }}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{3(\text { aq })}\right \vert \mathrm{Ag}}}\)
JEE Main - 2024
CHXII03:ELECTROCHEMISTRY

330056 Which of the following is incorrect in a galvanic cell?

1 Oxidation occurs at anode
2 Reduction occurs at cathode
3 The electrode at which electrons are gained is called cathode
4 The electrode at which electrons are lost is called cathode
KCET - 2016
CHXII03:ELECTROCHEMISTRY

330057 The formal potential of \(\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}\) in a sulphuric acid and phosphoric acid mixture\(\left( {{\rm{E}}^\circ = + 0.16\;{\rm{V}}} \right)\) is much lower than the standard potential\(\left( {{\rm{E}}^\circ = + 0.77{\rm{V}}} \right)\). This is due to

1 formation of the species \(\left[\mathrm{FeHPO}_{4}\right]^{+}\)
2 lowering of potential upon complexation
3 formation of the species \(\left[\mathrm{FeSO}_{4}\right]^{+}\)
4 high acidic of the medium
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CHXII03:ELECTROCHEMISTRY

330054 Which of the following is not a function of salt bridge?

1 To maintain electrical neutrality of the solution
2 To increase liquid-liquid junction potential
3 To prevent voltage drop and to minimise liquid - liqiud junction potential
4 To complete the circuit so that current can flow
CHXII03:ELECTROCHEMISTRY

330055 The reaction;
\({\mathrm{\dfrac{1}{2} \mathrm{H}_{2(\mathrm{~g})}+\mathrm{AgCl}_{(\mathrm{s})} \rightarrow \mathrm{H}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}+\mathrm{Ag}_{(\mathrm{s})}}}\)
occurs in which of the following galvanic cell

1 \({\mathrm{\mathrm{Ag}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{\text {3(aq) }}\right \vert \mathrm{Ag}}}\)
2 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{(\text {s) }}\right \vert \mathrm{Ag}}}\)
3 \({\mathrm{\mathrm{Pt}\left \vert \mathrm{H}_{2(\mathrm{~g})}\right \vert \mathrm{KCl}_{\text {(soln.) }}\left \vert \mathrm{AgCl}_{\text {(s) }}\right \vert \mathrm{Ag}}}\)
4 Pt \({\mathrm{\left \vert \mathrm{H}_{2(\text { g) }}\right \vert \mathrm{HCl}_{\text {(soln.) }}\left \vert \mathrm{AgNO}_{3(\text { aq })}\right \vert \mathrm{Ag}}}\)
JEE Main - 2024
CHXII03:ELECTROCHEMISTRY

330056 Which of the following is incorrect in a galvanic cell?

1 Oxidation occurs at anode
2 Reduction occurs at cathode
3 The electrode at which electrons are gained is called cathode
4 The electrode at which electrons are lost is called cathode
KCET - 2016
CHXII03:ELECTROCHEMISTRY

330057 The formal potential of \(\mathrm{Fe}^{3+} / \mathrm{Fe}^{2+}\) in a sulphuric acid and phosphoric acid mixture\(\left( {{\rm{E}}^\circ = + 0.16\;{\rm{V}}} \right)\) is much lower than the standard potential\(\left( {{\rm{E}}^\circ = + 0.77{\rm{V}}} \right)\). This is due to

1 formation of the species \(\left[\mathrm{FeHPO}_{4}\right]^{+}\)
2 lowering of potential upon complexation
3 formation of the species \(\left[\mathrm{FeSO}_{4}\right]^{+}\)
4 high acidic of the medium