Multiple choice

Which of the following statements is/are true?

(a) The passage of electric current through a conducting solution can cause chemical reaction. (b) The passage of electric current through a conducting solution can cause physical reaction.

  1. Only (a) is true.

  2. Only (b) is true.

  3. Both (a) and (b) are true.

  4. Both (a) and (b) are false.

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

The passage of electric current through a conducting solution can cause physical as well as chemical changes. Chemical changes are more obvious because they are easier to detect. However, passage of current also heats up the liquid, which is a physical phenomenon.