Multiple choice

The metal used in storage batteries is ______.

  1. Iron

  2. Copper

  3. Lead

  4. Tin
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lead-acid batteries use lead plates and sulfuric acid electrolyte. During discharge, both plates convert to lead sulfate, which reconverts during charging. Lead is ideal because it's cheap, has good electrochemical properties, and is dense enough to make compact batteries.

Keep practicing — related questions