Question

When an electric current is passed through a conducting solution, there is a change in the colour of the solution. This indicates:

• A. the chemical effect of current
• B. the heating effect of current
• C. the magnetic effect of current
• D. the lightning effect of current

Answer 1

The correct option is A

the chemical effect of current

Explanation of correct option:

Option A:

1. Chemical effect changes the chemical composition of the material.
2. When an electric current flows through a conducting solution, it causes a chemical reaction. This is a chemical effect of electric current.
3. A chemical reaction occurs when an electric current is used to conduct a solution. This results in a colour shift, which is due to the chemical effect of electric current.

Hence, (A) is the correct option.