When electric current is passed through a cell having an electrolyte, positive ions move towards the — Electrochemistry Chemistry Question

💡 Solution & Explanation

When the cathode is pulled out, the macroscopic electric current stops. However, the anode remains connected to the positive terminal of the power source. This residual positive potential causes a local electric field that slightly continues to attract negative ions to build a double layer, while positive ions just diffuse randomly due to thermal motion. Therefore, correct answer is C.