Question

an activity to show electrolysis. ​

Answer 1

the electrolysis of water by deeping on anode and cathode in water and provide electricity to break the bond between hydrogen and oxygen

Answer 2

$\tt \red { \pmb{\: \underline{To \: Demonstrate \: The \: Electrolysis \: of \: Water}}} : -$

$\bf \: { \pmb{ \colorbox{lavender}{ \blue{Material \: Required}}}} : -$

• One Battery of 9V
• Two Graphite Pencils
• One Beaker
• Tap Water
• Connecting Wires and tape

$\bf \: { \pmb{ \colorbox{lavender}{ \blue{Procedure }}}} : -$

1. Sharpen both ends of both the pencils.
2. Fill the beaker with tap water. Make sure that the contact with the Graphite in the pencils is perfect
3. Secure the wires with tape.
4. Use a piece of Cardboard to hold the pencils in a vertical position.
5. Place the exposed tips of the pencils in the water,such that tips are fully submerged but aren't touching the bottom.
6. The pencil is being used as ELECTRODE here. Now, Wait for 3-4 minutes and observe carefully.

$\bf \: { \pmb{ \colorbox{lavender}{ \blue{Observation }}}} : -$

• Small Gas Bubbles will formed near the electrodes.
• The change takes place in the tap water is the Chemical Change.