An electric current is passed through a conducting solution. List any three possible observations.

Explanation

### Step-by-Step Solution:

1. **Observation of Color Change**:
- When an electric current is passed through a conducting solution, one of the first observations is a change in color of the solution. This occurs due to the chemical reactions that take place as a result of the current. The nature of the solution determines the specific chemical changes, which can lead to a visible alteration in color.

2. **Increase in Temperature**:
- Another observation is an increase in temperature of the solution. The electric current generates heat as it flows through the conducting solution, which can cause the solution to become warmer. This heating effect is a direct result of the resistance encountered by the electric current in the solution.

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