Question

Recall that in an electrolytic cell the anode is given the + sign and the cathode is given the - sign, which is the opposite of what we see in batteries. What half-reaction occurs at the anode in this electrolytic cell?

Answer 1

Oxidation half-reaction.

Step-by-step explanation:

In electrolytic cell the anode is the positive electrode and the reaction occurring at anode is called Oxidation half-reaction.

The reaction is

`A^-` ⇒
`A + e^-`

In a half-reaction there is a change in the oxidation state of the individual species involved in the reaction. In the above oxidation half-reaction the -1 oxidation state of A changes to 0 when it loses an electron. And as per the definition oxidation is said to occur when there is a loss of one or more electrons.