Question

observe the following diagram and answer the question that follow



1) identify the gases evolved at anode and cathode

2)why don't the amount of gas is collected in the two test tube have the same volume

3)what type of reaction is this

Answer 1

1 )) chlorine is liberated at the anode
sodium is liberated at the cathode
2)) cl minus will only be attracted towards anode and not to cathode
3))) electrolysis

Answer 2

1. Cathode - hydrogen
Anode- oxygen
2. It's bcs water which is H2O contains 2 atoms of hydrogen and one atom of oxygen.
3.Electrolysis of water