Boojho made the circuit shown in Fig. 14.10. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain.

Question

Boojho made the circuit shown in Fig. 14.10. He wanted to observe what happens when an electric current is passed through water. But he forgot to add a few drops of lemon juice to water. Will it make any difference to his observations? Explain.

Philoid · Accepted Answer

Yes, the difference is that no current will pass through the circuit when lemon juice is not added to distilled water

Lemon juice contains citric acid which when dissolved in water dissociates into positive and negative ions and the solution starts conducting electricity.

On the other hand, distilled water has absence of minerals and salts and therefore current does not pass through it.