Electrochemistry questions
1808 published questions with worked solutions.
- Which of the following reactions occurs at cathode during discharging of lead accumulator ?
- The conductivity of 0.005 M NaI solution at 25^ C is 6.07 10^ -4 ^ -1 cm^ -1 . Calculate it's molar conductivity ?
- Calculate the amount of electricity required in coulombs to convert 0.08 mol of MnO_4^ - to Mn^ 2+
- What current strength is required to deposit 36 g of Ag in 7 minute from AgNO_3 solution by electrolysis? (atomic mass Ag = 108)
- Calculate standard potential of a cell having electrode reaction as Cd^ 2+ _ (aq) + 2e^- Cd_ (s) E^0 = -0.403 ,V Zn^ 2+ _ (aq) +...
- Which of the following is NOT a function of salt bridge?
- Calculate standard cell potential for a cell having following reaction, 2Al_ (s) + 3Ni^ 2+ 2Al^ 3+ + 3Ni_ (s) (E^0_ Ni = -0.25 V,...
- Calculate the quantity of electricity required to produce 0.42 g Ag at cathode during electrolysis of AgNO_3 solution. (molar...
- Which of the following cannot be considered as application of electrochemical series?
- Which element from following has highest negative standard reduction potential?
- Which from following equations is correct for relation between standard cell potential and equilibrium constant?
- What is standard reduction potential of Cu^ 2+ |Cu_ (s) if E^0 of following cell is 0.46V? Cu_ (s) |Cu^ 2+ _ (aq) |Ag^+_ (aq)...
- The conductivity of 0.20 M KCl solution at 300 K is 0.0248 ^ -1 cm^ -1 . What is its molar conductivity?
- Which among the following concentration of KCl solution is not used to determine cell constant of conductivity cell?
- How many coulomb of electricity is required to produce 1 g Na metal from it's ions? (atomic mass Na = 23)
- What is the change in potential of following cell Zn_ (s) ,| ,Zn^ 2+ ,(1 ,M) ,|| ,Pb^ 2+ ,(1 ,M) ,| ,Pb_ (s) , if concentration...
- A conductivity cell has two electrodes 18 mm apart and having cross sectional area 2.0 cm^2 . What is the value of cell constant?
- The resistance of a conductivity cell containing 0.001 M KCl solution at 300 K is 150 . What is the cell constant if conductivity...
- How many moles of electrons are required for the reduction of 3 moles of Zn^ 2+ to Zn(s) ?
- Calculate molar conductivity at infinite dilution for NaBr if molar conductivity at infinite dilution for NaCl, KBr and KCl are...
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