Multiple choice

Why are gas bubbles produced sometimes when electric current is passed through a conducting solution?

  1. Because passage of electric current causes physical changes, thereby reducing pressure inside the solutions

  2. Because passage of electric current causes chemical reactions, which lead to release of gases

  3. Because passage of electric current causes magnetic effects in the solution, leading to bubbble formation

  4. Because passage of electric current decreases the temperature of the conducting solution
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The passage of electric current causes chemical reactions, which may release a gaseous substance.

Keep practicing — related questions