Secondary Cells
Trending Questions
Q.
Cells which are used in mobile phones are
Voltaic cell
Galvanic cell
Lithium-ion cell
Nickel- Cadmium cell
Q. Which of the following is TRUE in case of recharging a Lead Storage Battery?
- PbSO4(s)+2e−→Pb(s)+SO2−4(aq)
- PbSO4(s)+2H2O→PbO2(s)+SO2−4(aq)+4H+(aq)+2e−
- Pb(s)+SO2−4(aq)→PbSO4(s)+2e−
- PbO2(s)+SO2−4+4H+(aq)+2e−→PbSO4(s)+2H2O(l)
Q.
The reactions occurring at the cathode during electrolysis involve __________
- reduction
- oxidation
- reverse
none of these
Q. Which of the following is characteristic of the cathode in a voltaic cell?
- It may gain weight during reaction
- Electrons flow to it through the external circuit
- It is where oxidation occurs
- It received electrons from ions in solution
Q.
The reactions occurring at the cathode during electrolysis involve __________
- reduction
- oxidation
- reverse
none of these