Step 1: Understand what amines are. Amines are compounds that contain a nitrogen atom bonded to carbon atoms or hydrogen atoms.
Step 2: Know that basicity in amines is related to how easily the nitrogen can accept a proton (H+).
Step 3: Recognize that electron-donating groups (like methyl groups) increase the electron density on the nitrogen atom.
Step 4: Compare the amines given in the question. Look for the one with the most electron-donating groups attached to the nitrogen.
Step 5: Identify dimethylamine, which has two methyl groups attached to the nitrogen.
Step 6: Conclude that dimethylamine is the most basic because the two methyl groups increase the electron density on the nitrogen, making it more likely to accept a proton.
