Electrochemistry questions
1808 published questions with worked solutions.
- The electrode potentials for Cu^ 2+ (aq) + e^- Cu^+(aq) and Cu^+(aq) + e^- Cu(s) are +0.15 V and +0.50 V respectively. The value...
- Standard electrode potential of three metals X, Y and Z are −1.2 V, +0.5 V and −3.0 V, respectively. The reducing power of these...
- The standard emf of a galvanic cell involving 2 moles of electrons in its redox reaction is 0.59 V. The equilibrium constant for...
- If the half-cell reactions are given as : (i) Fe^ 2+ (aq) + 2e^- Fe(s) ; E^ = -0.44 V (ii) 2H^+(aq) + 12 O_2(g) + 2e^- H_2O(l) ;...
- The standard emf of a cell involving one electron change is found to be 0.591 V at 25℃. The equilibrium constant of the reaction...
- E^ values of Mg^ 2+ /Mg is −2.37 V, of Zn^ 2+ /Zn is −0.76 V and Fe^ 2+ /Fe is −0.44 V. Which of the following statement is...
- The potential of the following cell is 0.34 V at 25℃. Calculate the standard reduction potential of the copper half-cell....
- An electrochemical cell can behave like an electrolytic cell when
- Which cell will measure standard electrode potential of copper electrode?
- The standard electrode potentials for the reactions, Ag^+(aq) + e^- Ag(s) Sn^ 2+ (aq) + 2e^- Sn(s) at 25℃ are 0.80 V and −0.14 V,...
- E^ _ (Ni^ 2+ /Ni) = -0.25 V, E^ _ (Au^ 3+ /Au) = 1.50 V. The emf of the voltaic cell, Ni/Ni^ 2+ (1.0 M) ,|| , Au^ 3+ (1.0 M) ,|...
- The cell reaction of a cell is Mg(s) + Cu^ 2+ (aq) Cu(s) + Mg^ 2+ (aq) If the standard reduction potential of Mg and Cu are −2.37...
- Calculate the emf of the following cell at 25℃ Pt(H_2)|HCl|(H_2)Pt
- Select the false statement for Daniell cell.
- Consider the reaction, 12 H_2(g) + AgCl(s) H^+(aq) + Cl^-(aq) + Ag(s) In which of the following galvanic cell, the above reaction...
- The standard reduction potential for Fe^ 2+ /Fe and Sn^ 2+ /Sn electrodes are −0.44 and −0.14 V, respectively. For the cell...
- Which among the following cell has longer life and more expensive to manufacture?
- Galvanic cell is a device in which
- The process of zinc-plating on iron sheet is known as
- Corrosion of iron is essentially an electrochemical phenomenon where the cell reactions are
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