Electrochemistry questions
1808 published questions with worked solutions.
- Which of the following is true about redox reaction in a cell?
- In voltaic cell, the electrons lost during the oxidation flow from
- If a salt bridge is removed between the two half cells, the voltage
- Which of the following statement is NOT CORRECT with respect to a voltaic cell?
- A voltaic cell stops working after some time, because the electrode potential of both the electrodes
- The e.m.f of the following three galvanic cells 1. Zn ,| ,Zn^ 2+ (1m) ,|| ,Cu^ 2+ (1m) ,| ,Cu 2. Zn ,| ,Zn^ 2+ (0.1m) ,|| ,Cu^ 2+...
- During the working of the Daniel cell, which of the following happens?
- Which of the following is true in the case of Zn – CuSO_4 cell?
- The emf of the Daniel cell using molar concentration of ZnSO_4 and CuSO_4 solution is (E^ _ Zn(ox) = 0.763 V; E^ _ Cu(ox) =...
- The reaction ½ H_2(g) + AgCl(s) → H^+(aq) + Cl^-(aq) + Ag(s) occurs in the galvanic cell
- Pb/PbSO_4(s), SO_4^ 2- (aq): Pb(s) + SO_4^ 2- ⇌ PbSO_4(s) + ?
- Cell reaction for the cell Zn | Zn^ 2+ (1.0 M) | Cd^ 2+ (1.0 M) | Cd is given by
- Which of the following is used in voltaic cell to represent a contact between electrode and electrolyte?
- Cell reaction for the cell Zn/Zn^ 2+ (1.0 M) // Cd^ 2+ (1.0 M) / Cd is given by
- It is impossible to measure the actual voltage of any half cell by itself because
- The most important condition for a galvanic cell is
- The electrode with higher reduction potential is written at
- The main difference between conventional electrochemical cell and fuel cell is the materials undergoing oxidation at the anode or...
- Ag/AgCl(s), Cl^-(aq): Ag(s) + Cl^- ⇌ ? + e^-
- Salt bridge is used because it
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