Multiple choice

In electrolysis of water, the bubbles formed on the negative terminal is actually _______ gas.

  1. Hydrogen

  2. Carbon dioxide

  3. Oxygen

  4. Nitrogen

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

During the electrolysis of water, hydrogen ions (H+) are attracted to the negative terminal (cathode), where they gain electrons to form hydrogen gas bubbles.