Rank the following radicals in order of increasing stability, putting the least stable first.

Question

Quizplus · Accepted Answer

The stability of a radical is influenced by factors such as resonance and steric hindrance. In radical III, there are no resonance structures that can stabilize it, and it has significant steric hindrance due to the tert-butyl group. Radical I has resonance structures that involve delocalization of the unpaired electron, which provides some stability. Radical II has the most resonance structures, and the unpaired electron is delocalized over the entire molecule, making it the most stable of the three. Therefore, the order of increasing stability is III < II < I.

Rank the Following Radicals in Order of Increasing Stability, Putting