Question

please answer this 4 questions

ch - chemical effects of current​

Answer 1

Answer:

The passage of an electric current through a conducting solution causes chemical reactions. As a result, bubbles of a gas may be formed on the electrodes. Deposits of metal may be seen on electrodes. Changes of colour of solutions may occur.

Answer 2

Answer:

1. hydrogen gas

2. when brought near a flame, the hydrogen gas makes a 'pop' sound where as the oxygen doesn't. The flame is simply seen as ignited and burning.

3. Carbon electrodes

4. Water needs to have some impurities so that it conducts electricity. So in order for the electrolysis to happen, sulfuric acid is added so that the ions conduct electricity.

☙I hope this helps you