Acetic acid, ethanol, acetaldehyde and ethane form a series of 2-carbon molecules which differ in their extent of oxidation. Convert ethanol to the next more reduced form in that ordered series. HelpMarvin JS

Explanation:

Ethanol can be oxidized to ethanal or acetaldehyde which is further oxidized to acid that is acetic acid.

→   [oxidation by loss of hydrogen]

Acetaldehyde can also be reduced back to ethanol again by adding hydrogen to it by using a reducing agent that is sodium tetrahydro borate, NaBH4.

       →   [reduction by the gain of electrons]

Here, the oxidizing agent used is in the presence of acetone.

2b2t

explanation:

2b2t