JEE Main Chemistry question
Platinum electrodes were immersed in a solution of cupric sulphate and electric current was passed through the solution. After some time, the blue colour of the copper sulphate solution disappeared with the evolution of gas at an electrode. The colourless solution contains
Answer: (D)
Solution
As electrolysis proceeds with inert (Pt) electrodes, is steadily deposited at the cathode until it is exhausted (the blue colour disappears), while at the anode water is oxidised
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