List of top Chemistry Questions on Electrochemistry asked in CBSE Compartment XII

What type of cell is mercury cell? Why is it more advantageous than dry cell?
The standard electrode potential for Sn\(^{4+}\)/Sn\(^{2+}\) couple is \(+0.15\ \text{V}\) and for Cu\(^{2+}\)/Cu couple is \(+0.73\ \text{V}\). These two couples are connected to make an electrochemical cell. The redox reaction is spontaneous. The cell potential will be:

What type of battery is the lead storage battery? Write the anode and the cathode reactions and the overall reaction occurring in a lead storage battery when current is drawn from it.

The electrical resistance of a column of 0.05 M NaOH solution of cell constant \( 50\ \text{cm}^{-1} \) is \( 4.5 \times 10^3\ \Omega \). Calculate its resistivity, conductivity and molar conductivity.

The standard electrode potential for Ni²⁺/Ni couple is -0.25 V and for Ag⁺/Ag couple is 0.80 V. These two couples are connected to make an electrochemical cell. The redox reaction is spontaneous. The cell potential will be: