Question

The diagram given below is the apparatus used for the electrolysis of water. Identify A, B, and C.

• A. A – Hydrogen, B- Oxygen,
  C – Platinum plates
• B. A – Hydrogen, B- Oxygen,
  C – Copper plates
• C. A – Oxygen, B- Hydrogen,
  C – Platinum plates
• D. A – Oxygen, B- Hydrogen,
  C – Platinum plates

Answer 1

The correct option is A A – Hydrogen, B- Oxygen,

C – Platinum plates
The given image shows the electrolysis of water using platinum electrodes.

$\bullet$ On passing electricity through acidified water, the water molecules break into hydrogen and oxygen gas. The reaction is represented as:$2H_{2}O\left(l\right)\to 2H_2\left(g\right)+O_2\left(g\right)$

$\bullet$ The hydrogen ions move towards the cathode, where they are released as the hydrogen gas. The gas is collected in beaker A.

$\bullet$ The oxygen ions move towards the anode, where they are released as oxygen gas. The gas is collected in beaker B.

$\bullet$ In the given apparatus, C represents the platinum plates used as electrodes.