Rank the following compounds in order of decreasing basicity,putting the most basic compound first.

Question

Quizplus · Accepted Answer

The basicity of a compound depends on its ability to donate an electron pair to a proton. In compound I, the nitrogen atom has two electron-donating groups (-CH3), which increases its basicity. In compound IV, the nitrogen atom is in a ring, which decreases its basicity. Compound III has no electron-donating groups and only one lone pair on the nitrogen atom, making it less basic than I. Compound II has only one electron-donating group (-NH2) and one lone pair on the nitrogen atom, making it the least basic compound. Therefore, the correct order of decreasing basicity is I > III > II > IV, which corresponds to choice C.

Rank the Following Compounds in Order of Decreasing Basicity,putting the Most