When recharging the lead-acid battery the positive terminal of the power supply should be connected to the A - VCE - SSCE Chemistry - Question 16 - 2011 - Paper 1

When recharging a lead-acid battery, the positive terminal of the power supply should be connected to the positive terminal of the battery. This is because the chemical reaction that occurs during charging involves the conversion of lead sulfate back to lead and sulfuric acid, a reduction process.

In electrochemistry, oxidation occurs at the anode and reduction occurs at the cathode. Therefore, when connecting the positive terminal, you are facilitating reduction at that terminal. This is crucial for restoring the battery's charge effectively and ensuring proper functioning.