When propyl alcohol is treated with acid, the initially formed intermediate is known as an oxonium ion. There is a scheme of a reversible chemical reaction. The substrates are CH3CH2CH2OH molecule and H with a charge of 1 plus ion. The product is CH3CH2CH2OH2 with a charge of 1 plus ion. Oxygen atom in CH3CH2CH2OH molecule has 2 lone pairs. Oxygen atom in CH3CH2CH2OH2 with a charge of 1 plus ion has a lone pair. All bonds are single.
Using the curved arrow formalism, show how this process most likely occurs.