Question

Write the activity of electrolysis of water

Answer 1

Aim:To show electrolysis of water

Materials Required:A Beaker,an anode and a cathode,Water and a battery and switch

Connect the anode to the positive terminal of the battery and the cathode to the negative terminal.Dip the electrodes inside the water. Switch on the switch.

Observation:Hydrogen gets deposited in the cathode and oxygen gets deposited at the anode...

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.