Electrolysis of Water Quiz

Which of the following is NOT a material required for the electrolysis of water experiment?

• Common salt

• A battery

• A thermometer

• Copper connecting wires

What is the purpose of adding common salt to the water in the electrolysis experiment?

• To decrease the water's pH level

• To make the water more conductive

• To change the color of the water

• To increase the temperature of the water

In the electrolysis setup, what is the role of the wire connected to the positive terminal of the battery?

• It acts as the negative electrode

• It acts as the positive electrode

• It is used to stir the solution

• It is used to measure voltage

What happens to the bubble formation when the key is removed from the plug in the electrolysis experiment?

• Bubble formation decreases

• Bubble formation remains unchanged

• Bubble formation stops

• Bubble formation increases

Why are more bubbles formed at the negative electrode during electrolysis of water?

• Because it is connected to the positive terminal

• Because it releases hydrogen

• Because it releases oxygen

• Because it is made of a special material