In the following molecules, identify all pushable electron pairs.

(a)

Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.

(b)

Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.

(d)

Two resonance structures are shown for each molecule. Use the arrow-pushing formalism to represent the electron flow from the structure on the left to the one on the right.

(f)

Identify the resonance structure that will be produced given the molecule shown and the electron flow indicated.

(c)

Draw the important resonance forms of the following free radicals.

(c)

(d)

Draw the important resonance forms of the following free radicals.

b.

Draw the important resonance forms of the following free radicals.

a.