Question

explain with help of an activity " electrolysis of water "​

Answer 1

Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water. The reaction has a standard potential of −1.23 V, meaning it ideally requires a potential difference of 1.23 volts to split wate

Answer 2

$\large\bf{\underline\orange{Answer \:↝}}$

Explain with help of an activity " electrolysis of water "

• Take a glass beaker fix two electrodes. The positive electrode acts as anode &negative electrode act as cathode.
• Fill 1/3 of beaker with water.
• Take two test tubes.
• Insert on electrodes. Observe the level of water in the test tubes.
• Connect the electrodes to a battery. Pass the electricity for a period of time.
• Later switch off the current and observe the level of water in test tubes.
• The level of water in the test tubes is decreased.
• The free space in the test tubes is filled with H2 & O2 gases.
• Oxygen gas is evolved at anode and hydrogen gas released at cathode.