Question

We will need copper sulphate and two copper plates of size around 10 cm x 4 cm. Take

250 ml. of distilled water in a clean and dry beaker. Dissolve two teaspoonfuls of copper

sulphate in it. Add a few drops of dilute sulphuric acid to copper sulphate solution to make it

more conducting. Clean copper plates with sand paper. Now rinse them with water and dry

them. Connect the copper plates to the terminals of a battery and immerse them in copper

sulphate solution

Allow the current to pass for about 15 minutes. Now remove the electrodes from the

solution and look at them carefully. Do you find any difference in any one of them? Do you

find a coating over it? What colour is the coating? Note down the terminal of the battery

with which this electrode is connected.​

Answer 1

Answer:

In this experiment, you will be preparing a copper sulfate solution by dissolving two teaspoonfuls of copper sulfate in 250 mL of distilled water. You will then add a few drops of dilute sulfuric acid to the solution to make it more conducting. You will also clean and dry two copper plates, and then connect them to the terminals of a battery. The plates will be immersed in the copper sulfate solution, and a current will be allowed to pass for 15 minutes. After this time, you will remove the electrodes from the solution and observe them for any differences or coatings. You will also note the terminal of the battery with which each electrode is connected.