Reduction and Oxidization

Question 1

Which of these is correctly associated with the cathode?

I.Electrode with a positive chargeII.Electrode at which a substance loses electronsIII.Electrode at which reduction occurs

I only

II only

I and II

I and III

I, II, and III

Question 2

Which of these is correctly associated with the anode?

I.Electrode with negative chargesII.Electrode at which a substance loses electronsIII.Electrode at which reduction occurs

I only

II only

I and II

I and III

I, II, and III

Question 3

Which of the following statements about the lead-acid battery is incorrect?

Pb + PbO2 + 4H+ + SO42− → 2PbSO4 + 2H2O

Lead is oxidized.

Lead oxide acts as the cathode.

Both the anode and cathode reactions result in the formation of PbSO4.

Lead and lead oxide can be reformed from lead sulfate with the application of an outside electrical current.

Porous lead plates act as the cathode.