Question

What do oxidation reactions produce during the electrolysis of water? H2(g) H2O(l) O2(g) OH–(aq)

Answer 1

It will prodce O2 as the oxidation reaction as oxidation of O changes from -2 to 0 !!

So your answer is third one ; O2(g)

Answer 2

Answer: Oxidation reaction produces oxygen and water molecule during electrolysis of water.

Step-by-step explanation:

Electrolysis of water is basically the decomposition of water into oxygen and hydrogen gas through a process of electric current.

Oxidation reaction is defined as the reaction in which a substance looses its electron to attain stability.

The chemical reactions during electrolysis of water are:

At cathode:
`2H_2O+2e^-\rightarrow H_2+2OH^-`

At anode:
`2OH^-\rightarrow (1)/(2)O_2+H_2O+2e^-`

Overall reaction:
`H_2O\rightarrow H_2+(1)/(2)O_2`

Oxidation reaction occurs at anode.

Hence, oxidation reaction produces oxygen and water molecule during electrolysis of water.