The aliphatic map reads from ethanol in the middle. To the right it is oxidised to acetaldehyde and again to acetic acid. To the left concentrated sulfuric acid takes water out, and the temperature decides whether ethylene or diethyl ether comes out.
Pick a part in the map panel, press a point for the compound and an arrow for the reaction, then press run in the reaction panel to let the flask work. The chart panel switches its axis between boiling point, molar mass and acid strength. Panels can be dragged by their header and resized from any edge or corner, and double-clicking a title pins it to the top right.
Where the oxidation stops is decided by how many hydrogens sit on the carbon carrying the hydroxy group. A primary alcohol has two, so it goes two steps to the carboxylic acid. A secondary alcohol has one, so it stops at the ketone. The arrow from 2-propanol to acetone is that, and the absence of an arrow after it is the answer.
The two dehydrations differ only in temperature. At 160-170 C water leaves one molecule and an alkene forms. At 130-140 C one water leaves two molecules and an ether forms. The reagent is the same, so the arrows carry the temperature.
Acetic acid and ethanol give ethyl acetate. The concentrated sulfuric acid is there to take water out and drive the reaction forward. Two arrows come back: dilute acid hydrolyses it to the carboxylic acid, while sodium hydroxide saponifies it to the salt and does not come back. That difference returns in the separation part.