Question

Which of the following is the most stable free radical?

Options

• \[\ce{C6H5 - CH2 - CH^{•}2}\]

• \[\ce{C6H5 - CH^{•} - CH3}\]

• \[\ce{CH3 - CH^{•} - CH3}\]

• \[\ce{C6H5 - CH2 - CH2 - CH^{•}2}\]

Answer 1

\[\ce{C6H5 - CH^{•} - CH3}\]

Explanation:

\[\ce{C6H5 - \overset{\bullet}{C}H - CH3 > CH3 - \overset{\bullet}{C}H - CH3 > C6H5 - CH2 - CH2 - \overset{\bullet}{C}H2 > C6H5 - CH2 - \overset{\bullet}{C}H2}\]