Question

NaCl aqueous electrolysis (saturated solution)

Why H2 is formed more quickly than Cl2?

Thank you

Answer 1

is it because the bonds between hydrogen molecules for easier than bonds between chlorine molecules?

Answer 2

`Why H2 is formed more quickly than Cl2? `
I believe the question is meant to be:
"Why H2 \(appears~ to~ form\) more quickly than Cl2? "

If you have observed the electrolysis first hand, you will see hydrogen bubbles forming on the electrode as soon as the current is turned on, but no bubbles on the chlorine side. However, if you look very carefully, you will see that the water around the chlorine electrode appears yellowish-green. Can you explain that?

Answer 3

@mathmate So you're saying both gases are formed at the same ratio, but chlorine dissolves in water?

Answer 4

Exactly!
Have you done the experiment first hand, or was it a simulation online?